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	<title>FracTad&#039;s Fractopia</title>
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		<title>FracTad&#039;s Fractopia</title>
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		<title>A Nice Tool for Student Responses</title>
		<link>http://fractad.wordpress.com/2012/01/27/a-nice-tool-for-student-responses/</link>
		<comments>http://fractad.wordpress.com/2012/01/27/a-nice-tool-for-student-responses/#comments</comments>
		<pubDate>Sat, 28 Jan 2012 00:52:41 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Web Tools]]></category>
		<category><![CDATA[online polling]]></category>
		<category><![CDATA[socrative]]></category>
		<category><![CDATA[web 2.0 tools]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1501</guid>
		<description><![CDATA[I&#8217;ve been using Socrative in my classes more and more lately. It is an online polling tool that lets me post a question or problem, and my students can anonymously respond. It&#8217;s very flexible &#8211; you can offer multiple choice, &#8230; <a href="http://fractad.wordpress.com/2012/01/27/a-nice-tool-for-student-responses/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1501&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>I&#8217;ve been using <a href="http://www.socrative.com/">Socrative</a> in my classes more and more lately. It is an online polling tool that lets me post a question or problem, and my students can anonymously respond. It&#8217;s very flexible &#8211; you can offer multiple choice, true/false, short answer, etc. Here&#8217;s a screenshot:</p>
<p><a href="http://fractad.files.wordpress.com/2012/01/socrative1.jpg"><img class="aligncenter size-full wp-image-1503" title="Socrative" src="http://fractad.files.wordpress.com/2012/01/socrative1.jpg?w=584&#038;h=254" alt="" width="584" height="254" /></a></p>
<p>They love using it, and I get immediate feedback on how many students understand what we&#8217;re learning, and how many need some extra practice. It works with smartphones as well as laptops.</p>
<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/web-tools/'>Web Tools</a> Tagged: <a href='http://fractad.wordpress.com/tag/online-polling/'>online polling</a>, <a href='http://fractad.wordpress.com/tag/socrative/'>socrative</a>, <a href='http://fractad.wordpress.com/tag/web-2-0-tools/'>web 2.0 tools</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1501/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1501/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1501/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1501/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1501/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1501/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1501/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1501/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1501/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1501/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1501/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1501/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1501/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1501/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1501&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>It&#8217;s Fundamentally Calculus</title>
		<link>http://fractad.wordpress.com/2012/01/27/its-fundamentally-calculus/</link>
		<comments>http://fractad.wordpress.com/2012/01/27/its-fundamentally-calculus/#comments</comments>
		<pubDate>Sat, 28 Jan 2012 00:28:27 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Miscellanea]]></category>

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		<description><![CDATA[I know, cheesy title, but I couldn&#8217;t think of anything else. Anyway, we&#8217;ve hit a milestone in our Calculus class &#8211; this is the point in the syllabus where we learn about The Fundamental Theorem of Calculus. It&#8217;s actually pretty &#8230; <a href="http://fractad.wordpress.com/2012/01/27/its-fundamentally-calculus/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1499&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>I know, cheesy title, but I couldn&#8217;t think of anything else. Anyway, we&#8217;ve hit a milestone in our Calculus class &#8211; this is the point in the syllabus where we learn about The Fundamental Theorem of Calculus. It&#8217;s actually pretty incredible: this one theorem establishes the connection between derivatives, integrals, and limits. What a wonderful thing.</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2012/01/27/its-fundamentally-calculus/"><img src="http://img.youtube.com/vi/vHUjExm6y00/2.jpg" alt="" /></a></span>
<p> </p>
<br />Filed under: <a href='http://fractad.wordpress.com/category/miscellanea/'>Miscellanea</a>  <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1499/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1499/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1499/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1499/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1499/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1499/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1499/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1499/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1499/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1499/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1499/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1499/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1499/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1499/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1499&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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			<media:title type="html">fractad</media:title>
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		<title>A Follow-Up to Teaching in a &#8220;Reverse Classroom&#8221;</title>
		<link>http://fractad.wordpress.com/2012/01/26/a-follow-up-to-teaching-in-a-reverse-classroom/</link>
		<comments>http://fractad.wordpress.com/2012/01/26/a-follow-up-to-teaching-in-a-reverse-classroom/#comments</comments>
		<pubDate>Fri, 27 Jan 2012 00:39:42 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[flipped classroom]]></category>
		<category><![CDATA[Reverse classroom]]></category>
		<category><![CDATA[screencasting]]></category>
		<category><![CDATA[web 2.0 tools]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1448</guid>
		<description><![CDATA[Last year I made a brief post about a new technique I was trying out called &#8220;Reverse Classroom&#8221;. Basically, it entails my recording screencasts (I use screencast-o-matic) of the material I would normally teach my students via lecture, and posting &#8230; <a href="http://fractad.wordpress.com/2012/01/26/a-follow-up-to-teaching-in-a-reverse-classroom/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1448&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Last year I made a brief post about a new technique I was trying out called &#8220;Reverse Classroom&#8221;. Basically, it entails my recording screencasts (I use <a href="www.screencast-o-matic.com">screencast-o-matic</a>) of the material I would normally teach my students via lecture, and posting them on a website that they access at home ( my school uses Moodle, but Haiku or Googlesites would work just as well.). Then, when we meet for class, they already know the content, and we work together on the &#8220;homework&#8221;. Except it&#8217;s not homework any more &#8211; it&#8217;s practice, or reinforcement. The advantages are:</p>
<p>1. Less time at home spent doing problems (they only need to watch a 6 &#8211; 15 minute screencast)</p>
<p>2. I&#8217;m available to answer questions while students work on an assignment.</p>
<p>3. Class time is freed up for more hands-on activities that are more memorable than plowing through worksheets.</p>
<p>4. Students can work at their own pace &#8211; some of them are two to three days ahead of the course syllabus.</p>
<p>5. All of my lectures are archived for use when it is time to review for exams.</p>
<p>My tentative steps into this teaching method last year were so successful that I began this year&#8217;s Honors Precalculus course with 100% flipped classes. After one semester, I asked my students for feedback. Here are the initial responses:</p>
<p><em>   I really like it because it gives us the opportunity to work through problems as a group, and ask for help if needed. Its way more time efficient to be able to ask a question right when we have it, instead of having to wait a day or two. The screencasts are also nice because if you didn&#8217;t understand something the first time, you can always rewind it.</em></p>
<div><em>   I have grown to really like the flipped classroom style. It&#8217;s easy to pause the screencast and process the material at your own pace. It also allows for doing more problems in class which helps me a lot because you can ask questions and work together to master the concepts. My only big concern is not having a formal lecture where you learn off of other classmate&#8217;s questions, but having you walk around to help with individual struggles, for me, is more effective. It caters to everyone&#8217;s learning styles. </em></div>
<div><em>Thanks</em></div>
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<div><em>   I really like it because it gives us the chance to try to learn the material on our own and then come in with any questions.  Also, I have the most questions when I&#8217;m working problems as opposed to taking the notes, so its helpful to be in class when these questions come up. Thanks!</em></div>
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<div><em>   Here is my opinion: </em><br />
<em>Though it took some getting used to, I like the &#8220;flipped&#8221; classroom style. It is a lot easier to do homework in class because the teacher is right there to answer questions. It is also nice learning at home because students learn at different paces, and I can pause the teacher whenever I need to process something without bothering other people in the class. I am not a huge fan of the online homework because I prefer to use books and think it is easier to work out math when everything is written down. However, it is very helpful having the answers easily available and being able to redo the homework multiple times for practice before a test.</em></div>
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<div><em>   I have loved the flipped classroom idea. It allows me to get ahead when I know I am going to have a busy night of homework. It also allows for me to be able to pause and rewatch a certain concept I may not understand clearly the first time. Then if I am still struggling after rewatching a few times, I am able to come to class with my questions already prepared.</em></div>
<div><em>Hope this is helpful. See you in class.</em></div>
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<div><em>   I think that the &#8220;flipped&#8221; classroom learning technique allows for students, especially girls, to individually manage their time when taking notes and understanding the material. This is extremely helpful because not all students learn at the same pace, and this technique allows for them to each cover the same material but in their own way. I have also found that if after the lesson, I still do not understand the material, at least I already have information in my notebook to refer to when I go in to ask questions. It is very useful!</em></div>
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<div><em>   I&#8217;ve really liked the flipped classroom technique.  I&#8217;ve had so much less homework and it&#8217;s been much more efficient.  The only drawback would be that we fly through the chapters pretty quickly and sometimes I feel like I don&#8217;t get to really absorb the material until I try to cram for the test.</em></div>
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<div><em>   I like and dislike aspects of the reverse classroom technique, but one thing I didn&#8217;t like was the fact that if some girls worked ahead it made the rest of us rushed because there was no need to cover the material and less time to answer or ask questions. I do like how we can work on our homework in class and how you come around checking on each of us. I am also not a huge fan of the screen casts. Because they can&#8217;t be too long, sometimes I have a hard time understanding certain concepts. But with the reversed classroom, this problem basically fixes itself because even if we are confused from the screen cast, we can come in to ask questions while we are working.</em></div>
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<div><em>   I really enjoy the flipped class technique.  It allows us to be exposed to the material/learn the material before we come in for class. This gives us the time to more in depth questions and begin our homework while you are still there to help us.</em></div>
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<div><em>   Having &#8220;reverse classes&#8221; is like always having a teacher present! When we watch Mr. Wert&#8217;s screencasts at home we can take notes and write down questions. Then when we get to class we have both the opportunity to ask questions on the note-taking and broader part of a topic. Also, we then get to really dive in and be able to take risks and explore mathematics when working on homework because of the confidence we are given with having a teacher always available during class. The chance to do homework in class is very relieving and reduces the stress of tough homework (which discourages many from trying again). Instead of giving up on a seemingly-impossible problem, I can work extremely hard and collaborate with other classmates (because they are siting right beside me in class) because I know that Mr. Wert is available to help us out along the way. It is also positively helping our solving skills, because unlike normal class where the answer to a homework problem is just given the next day in class; because Mr. Wert is available he can give us little hints and advice as we are working the problem out. I feel more accomplished and educated when a teacher can help me along instead of giving me the correct answer and look at my work in retrospect. Also because of experience I know sometimes I ask, &#8220;what was I thinking when I did this homework?&#8221; Now when I am at home alone I can just write down something that is directly given to me and challenge myself during school amongst others so I will never get lost in a problem I am doing and will not have to ask the dreadful question of, &#8220;Where was I going with this?&#8221; Having witnesses and almost 16 times the help in a class like mine makes all the difference. I love reverse classes.</em></div>
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<div><em>   I like the flipped math system because it allows me to get ahead on work if I finish my assignments early. I also concentrate better when reading notes in the comfort of my home, so I enjoy that feature very much. Having all of the notes via screencasts is also great  when studying for tests, just in case I forget to write a certain point or if I wanted to re-do an example problem.</em></div>
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<p><em><span style="font-family:arial,helvetica,sans-serif;">By having our lectures on a screencast, I get to set the pace of how fast or slow I want to take my notes. Also, if there is something I don&#8217;t understand, I can watch it multiple times. While studying for tests, I am able to re-watch lectures at my disposal instead of having to guess what I wrote (or left out) in my notes. </span></em></p>
<p><span style="font-family:arial,helvetica,sans-serif;"> </span></p>
<p><span style="font-family:arial,helvetica,sans-serif;">I also like doing the practice problems and homework in class because I am able to ask questions on the spot instead of having to wait till the next day to understand a problem.</span></p>
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<div>So what can we conclude from these positive responses? I think online tools have become easy enough to use, and accessible enough for students, that almost all teaching and learning should have an online component. Beginning next year, ALL of my courses will be taught using the reverse classroom technique.</div>
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<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/flipped-classroom/'>flipped classroom</a>, <a href='http://fractad.wordpress.com/tag/reverse-classroom/'>Reverse classroom</a>, <a href='http://fractad.wordpress.com/tag/screencasting/'>screencasting</a>, <a href='http://fractad.wordpress.com/tag/web-2-0-tools/'>web 2.0 tools</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1448/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1448/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1448/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1448/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1448/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1448/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1448/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1448/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1448/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1448/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1448/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1448/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1448/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1448/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1448&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>Exponential and Logarithmic Equations</title>
		<link>http://fractad.wordpress.com/2012/01/26/exponential-and-logarithmic-equations/</link>
		<comments>http://fractad.wordpress.com/2012/01/26/exponential-and-logarithmic-equations/#comments</comments>
		<pubDate>Fri, 27 Jan 2012 00:14:20 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[Algebra]]></category>
		<category><![CDATA[exponential equations]]></category>
		<category><![CDATA[logarithmic equations]]></category>
		<category><![CDATA[precalculus]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1443</guid>
		<description><![CDATA[Now that we&#8217;ve covered the properties of exponential and logarithmic functions, we&#8217;re ready to solve equations involving them! Because they are inverse functions, we use one to solve the other.You can learn more by watching the screencast below: &#160; Filed &#8230; <a href="http://fractad.wordpress.com/2012/01/26/exponential-and-logarithmic-equations/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1443&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Now that we&#8217;ve covered the properties of exponential and logarithmic functions, we&#8217;re ready to solve equations involving them! Because they are inverse functions, we use one to solve the other.You can learn more by watching the screencast below:</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2012/01/26/exponential-and-logarithmic-equations/"><img src="http://img.youtube.com/vi/O_PCSD8MBAc/2.jpg" alt="" /></a></span>
<p>&nbsp;</p>
<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/algebra/'>Algebra</a>, <a href='http://fractad.wordpress.com/tag/exponential-equations/'>exponential equations</a>, <a href='http://fractad.wordpress.com/tag/logarithmic-equations/'>logarithmic equations</a>, <a href='http://fractad.wordpress.com/tag/precalculus/'>precalculus</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1443/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1443/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1443/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1443/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1443/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1443/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1443/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1443/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1443/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1443/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1443/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1443/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1443/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1443/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1443&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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			<media:title type="html">fractad</media:title>
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		<title>More Properties of Logarithms</title>
		<link>http://fractad.wordpress.com/2012/01/25/more-properties-of-logarithms/</link>
		<comments>http://fractad.wordpress.com/2012/01/25/more-properties-of-logarithms/#comments</comments>
		<pubDate>Wed, 25 Jan 2012 20:16:04 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[change-of-base]]></category>
		<category><![CDATA[logarithms]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1439</guid>
		<description><![CDATA[Once you realize that logarithms are exponents, all the properties of logarithms should make sense. Whatever rules exponents follow, logarithms will also obey. This screencast explains it in more detail: &#160; Filed under: Education, Math Tagged: change-of-base, logarithms<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1439&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Once you realize that logarithms are exponents, all the properties of logarithms should make sense. Whatever rules exponents follow, logarithms will also obey. This screencast explains it in more detail:</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2012/01/25/more-properties-of-logarithms/"><img src="http://img.youtube.com/vi/LQTRZmr03bs/2.jpg" alt="" /></a></span>
<p>&nbsp;</p>
<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/change-of-base/'>change-of-base</a>, <a href='http://fractad.wordpress.com/tag/logarithms/'>logarithms</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1439/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1439/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1439/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1439/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1439/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1439/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1439/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1439/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1439/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1439/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1439/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1439/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1439/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1439/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1439&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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			<media:title type="html">fractad</media:title>
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		<title>The Power of Logarithms</title>
		<link>http://fractad.wordpress.com/2012/01/25/the-power-of-logarithms/</link>
		<comments>http://fractad.wordpress.com/2012/01/25/the-power-of-logarithms/#comments</comments>
		<pubDate>Wed, 25 Jan 2012 15:26:38 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Math]]></category>
		<category><![CDATA[Algebra]]></category>
		<category><![CDATA[logarithms]]></category>
		<category><![CDATA[precalculus]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1435</guid>
		<description><![CDATA[Logarithms. The word can strike terror in the hearts of algebra and precalculus students everywhere. However, once you understand their secret, there is nothing to fear. Logarithms are simply powers of numbers. They’re exponents! For example, when you ask yourself, &#8230; <a href="http://fractad.wordpress.com/2012/01/25/the-power-of-logarithms/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1435&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Logarithms. The word can strike terror in the hearts of algebra and precalculus students everywhere. However, once you understand their secret, there is nothing to fear. Logarithms are simply powers of numbers. They’re exponents! For example, when you ask yourself, “What power of 3 would give me 81?”, and you answer “4”, you just figured out a logarithm. 4 is the log of 81, base 3.</p>
<p>See? That wasn’t so scary, was it? Now watch my latest screencast to learn more about these misunderstand numbers.</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2012/01/25/the-power-of-logarithms/"><img src="http://img.youtube.com/vi/55UXgQFvfhs/2.jpg" alt="" /></a></span>
<br />Filed under: <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/algebra/'>Algebra</a>, <a href='http://fractad.wordpress.com/tag/logarithms/'>logarithms</a>, <a href='http://fractad.wordpress.com/tag/precalculus/'>precalculus</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1435/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1435/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1435/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1435/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1435/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1435/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1435/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1435/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1435/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1435/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1435/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1435/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1435/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1435/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1435&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>2012 Light, Math, and Color</title>
		<link>http://fractad.wordpress.com/2012/01/20/2012-light-math-and-color/</link>
		<comments>http://fractad.wordpress.com/2012/01/20/2012-light-math-and-color/#comments</comments>
		<pubDate>Fri, 20 Jan 2012 17:19:33 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Artglass]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[Harpeth Hall]]></category>
		<category><![CDATA[Winterim 2012]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1411</guid>
		<description><![CDATA[The students in my course Light, Math, &#38; Color made these windows. Their assignment was to find an interesting mathematical topic and illustrate it with artglass. None of them had ever worked with glass before, so these are all first &#8230; <a href="http://fractad.wordpress.com/2012/01/20/2012-light-math-and-color/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1411&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>The students in my course Light, Math, &amp; Color made these windows. Their assignment was to find an interesting mathematical topic and illustrate it with artglass. None of them had ever worked with glass before, so these are all first attempts. The math topics illustrated by these windows include the Pythagorean Theorem, the Golden Rectangle, the Four-Color Theorem, Fibonacci Numbers and the Golden Triangle, and Circumscribing a Triangle, among others.</p>
<a href="http://fractad.wordpress.com/2012/01/20/2012-light-math-and-color/#gallery-1-slideshow">Click to view slideshow.</a>
<br />Filed under: <a href='http://fractad.wordpress.com/category/artglass/'>Artglass</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/harpeth-hall/'>Harpeth Hall</a>, <a href='http://fractad.wordpress.com/tag/winterim-2012/'>Winterim 2012</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1411/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1411/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1411/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1411/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1411/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1411/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1411/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1411/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1411/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1411/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1411/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1411/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1411/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1411/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1411&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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			<media:title type="html">fractad</media:title>
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		<title>Fantastic Fractals Final Projects</title>
		<link>http://fractad.wordpress.com/2012/01/20/fantastic-fractals-final-projects/</link>
		<comments>http://fractad.wordpress.com/2012/01/20/fantastic-fractals-final-projects/#comments</comments>
		<pubDate>Fri, 20 Jan 2012 15:41:31 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Fractals]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[Apophysis]]></category>
		<category><![CDATA[Fractal Explorer]]></category>
		<category><![CDATA[Harpeth Hall]]></category>
		<category><![CDATA[Winterim 2012]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1394</guid>
		<description><![CDATA[These are the final projects by the students in my Fantastic Fractals minicourse. After learning the math behind iterated function systems, Julia Sets, and the Mandelbrot Set, they went to work creating their own masterpieces. They used the software Apophysis &#8230; <a href="http://fractad.wordpress.com/2012/01/20/fantastic-fractals-final-projects/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1394&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>These are the final projects by the students in my Fantastic Fractals minicourse. After learning the math behind iterated function systems, Julia Sets, and the Mandelbrot Set, they went to work creating their own masterpieces. They used the software <a href="http://apophysis.org/" target="_blank">Apophysis</a> and <a href="http://www.eclectasy.com/Fractal-Explorer/" target="_blank">Fractal Explorer</a> to generate these beauties.</p>
<a href="http://fractad.wordpress.com/2012/01/20/fantastic-fractals-final-projects/#gallery-2-slideshow">Click to view slideshow.</a>
<p>&nbsp;</p>
<br />Filed under: <a href='http://fractad.wordpress.com/category/math/fractals/'>Fractals</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/apophysis/'>Apophysis</a>, <a href='http://fractad.wordpress.com/tag/fractal-explorer/'>Fractal Explorer</a>, <a href='http://fractad.wordpress.com/tag/harpeth-hall/'>Harpeth Hall</a>, <a href='http://fractad.wordpress.com/tag/winterim-2012/'>Winterim 2012</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1394/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1394/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1394/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1394/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1394/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1394/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1394/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1394/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1394/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1394/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1394/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1394/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1394/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1394/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1394&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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			<media:title type="html">fractad</media:title>
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		<title>Endlessly Fascinating Julias</title>
		<link>http://fractad.wordpress.com/2012/01/12/endlessly-fascinating-julias/</link>
		<comments>http://fractad.wordpress.com/2012/01/12/endlessly-fascinating-julias/#comments</comments>
		<pubDate>Thu, 12 Jan 2012 15:04:10 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Fractals]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[Gaston Julia]]></category>
		<category><![CDATA[Julia Sets]]></category>
		<category><![CDATA[Winfeed]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1383</guid>
		<description><![CDATA[These are Julia sets that were created by students in my Fantastic Fractals course. We used Winfeed to plot them (free download here). Julia sets were first calculated by the French mathematician Gaston Julia. They are the result of iterating &#8230; <a href="http://fractad.wordpress.com/2012/01/12/endlessly-fascinating-julias/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1383&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>These are Julia sets that were created by students in my Fantastic Fractals course. We used Winfeed to plot them (free download <a title="Winfeed download" href="http://math.exeter.edu/rparris/peanut/wf32z.exe" target="_blank">here</a>).</p>
<p>Julia sets were first calculated by the French mathematician <a href="http://en.wikipedia.org/wiki/Gaston_Julia" target="_blank">Gaston Julia</a>. They are the result of iterating the the function f(z) = z^2 + c, where c is a complex number. Depending on the value of c, the iterations lead to &#8220;prisoner points&#8221; that stay close to the origin, &#8220;escaping points&#8221; that increase to infinity, or points that lie on a boundary between the prisoners and the escapees. The points on the boundary are the Julia Set. Until the advent of modern computers, we were unable to calculate Julia Sets with much accuracy. Now, however, we are able to see them in a matter of seconds.</p>
<a href="http://fractad.wordpress.com/2012/01/12/endlessly-fascinating-julias/#gallery-3-slideshow">Click to view slideshow.</a>
<br />Filed under: <a href='http://fractad.wordpress.com/category/math/fractals/'>Fractals</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/gaston-julia/'>Gaston Julia</a>, <a href='http://fractad.wordpress.com/tag/julia-sets/'>Julia Sets</a>, <a href='http://fractad.wordpress.com/tag/winfeed/'>Winfeed</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1383/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1383/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1383/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1383/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1383/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1383/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1383/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1383/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1383/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1383/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1383/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1383/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1383/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1383/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1383&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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			<media:title type="html">Reineke_Julia</media:title>
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		<title>Math Quilts</title>
		<link>http://fractad.wordpress.com/2011/12/16/math-quilts/</link>
		<comments>http://fractad.wordpress.com/2011/12/16/math-quilts/#comments</comments>
		<pubDate>Fri, 16 Dec 2011 14:18:35 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[art]]></category>
		<category><![CDATA[quilts]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1372</guid>
		<description><![CDATA[A colleague of mine is a very talented math teacher and quilter. She has combined her gifts to create mathematical quilts. They illustrate various concepts &#8211; the Pythagorean theorem, conic sections, a spiral of Theodorus that is constructed with right &#8230; <a href="http://fractad.wordpress.com/2011/12/16/math-quilts/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1372&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>A colleague of mine is a very talented math teacher and quilter. She has combined her gifts to create mathematical quilts. They illustrate various concepts &#8211; the Pythagorean theorem, conic sections, a spiral of Theodorus that is constructed with right triangles, the Fibonacci sequence with rectangles, Tetraminoes, and a perfect rectangle composed of squares.</p>
<a href="http://fractad.wordpress.com/2011/12/16/math-quilts/#gallery-4-slideshow">Click to view slideshow.</a>
<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/art/'>art</a>, <a href='http://fractad.wordpress.com/tag/math/'>Math</a>, <a href='http://fractad.wordpress.com/tag/quilts/'>quilts</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1372/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1372/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1372/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1372/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1372/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1372/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1372/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1372/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1372/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1372/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1372/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1372/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1372/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1372/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1372&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>It&#8217;s Not Just a Nice Way to Solve Triangles, It&#8217;s the Law</title>
		<link>http://fractad.wordpress.com/2011/11/29/its-not-just-a-nice-way-to-solve-triangles-its-the-law/</link>
		<comments>http://fractad.wordpress.com/2011/11/29/its-not-just-a-nice-way-to-solve-triangles-its-the-law/#comments</comments>
		<pubDate>Tue, 29 Nov 2011 15:18:22 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[Law of Cosines]]></category>
		<category><![CDATA[precalculus]]></category>
		<category><![CDATA[trigonometry]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1368</guid>
		<description><![CDATA[Solving missing lengths and angles of right triangles is a piece of cake if you understand sine, cosine, and tangent. But what can we do if the triangle we&#8217;re trying to solve isn&#8217;t a right triangle? Fortunately, there is the &#8230; <a href="http://fractad.wordpress.com/2011/11/29/its-not-just-a-nice-way-to-solve-triangles-its-the-law/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1368&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Solving missing lengths and angles of right triangles is a piece of cake if you understand sine, cosine, and tangent. But what can we do if the triangle we&#8217;re trying to solve isn&#8217;t a right triangle? Fortunately, there is the Law of Cosines. It works for SAS and SSS situations, and there is never an ambiguous case (like there is with the Law of Sines).</p>
<p>Here&#8217;s my explanation of this very useful law:</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2011/11/29/its-not-just-a-nice-way-to-solve-triangles-its-the-law/"><img src="http://img.youtube.com/vi/RxCqYPEW4sw/2.jpg" alt="" /></a></span>
<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/law-of-cosines/'>Law of Cosines</a>, <a href='http://fractad.wordpress.com/tag/precalculus/'>precalculus</a>, <a href='http://fractad.wordpress.com/tag/trigonometry/'>trigonometry</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1368/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1368/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1368/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1368/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1368/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1368/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1368/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1368/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1368/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1368/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1368/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1368/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1368/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1368/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1368&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>My New Toy: FluidMath!</title>
		<link>http://fractad.wordpress.com/2011/11/13/my-new-toy-fluidmath/</link>
		<comments>http://fractad.wordpress.com/2011/11/13/my-new-toy-fluidmath/#comments</comments>
		<pubDate>Sun, 13 Nov 2011 18:47:49 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[computer algebra system]]></category>
		<category><![CDATA[FluidMath]]></category>
		<category><![CDATA[graphing software]]></category>
		<category><![CDATA[math software]]></category>
		<category><![CDATA[tablet computers]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1361</guid>
		<description><![CDATA[A few weeks ago, I downloaded and installed this new software called FluidMath. I think it is the most revolutionary tool to hit math and science classes since the graphing calculator. It is the first math software specifically designed to &#8230; <a href="http://fractad.wordpress.com/2011/11/13/my-new-toy-fluidmath/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1361&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>A few weeks ago, I downloaded and installed this new software called FluidMath. I think it is the most revolutionary tool to hit math and science classes since the graphing calculator. It is the first math software specifically designed to work on a tablet computer.</p>
<p>I haven&#8217;t had a chance to really explore all of FluidMath&#8217;s features, but I am so excited about it, I wanted to share a screencast showing some of the basic things it can do. It&#8217;s really amazing!</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2011/11/13/my-new-toy-fluidmath/"><img src="http://img.youtube.com/vi/OfsyG6w0OLE/2.jpg" alt="" /></a></span>
<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/computer-algebra-system/'>computer algebra system</a>, <a href='http://fractad.wordpress.com/tag/fluidmath/'>FluidMath</a>, <a href='http://fractad.wordpress.com/tag/graphing-software/'>graphing software</a>, <a href='http://fractad.wordpress.com/tag/math-software/'>math software</a>, <a href='http://fractad.wordpress.com/tag/tablet-computers/'>tablet computers</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1361/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1361/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1361/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1361/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1361/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1361/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1361/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1361/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1361/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1361/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1361/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1361/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1361/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1361/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1361&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>Can I See Some ID, Please?</title>
		<link>http://fractad.wordpress.com/2011/11/13/can-i-see-some-id-please/</link>
		<comments>http://fractad.wordpress.com/2011/11/13/can-i-see-some-id-please/#comments</comments>
		<pubDate>Sun, 13 Nov 2011 17:30:12 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[identities]]></category>
		<category><![CDATA[precalculus]]></category>
		<category><![CDATA[trigonometry]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1358</guid>
		<description><![CDATA[One of the more enjoyable topics in precalculus and trigonometry is verifying trigonometric identities. In this type of problem, you are presented with two trig expressions, and it&#8217;s up to you to prove they are equal. We use all of &#8230; <a href="http://fractad.wordpress.com/2011/11/13/can-i-see-some-id-please/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1358&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>One of the more enjoyable topics in precalculus and trigonometry is <em>verifying trigonometric identities.</em> In this type of problem, you are presented with two trig expressions, and it&#8217;s up to you to prove they are equal. We use all of the fundamental trig identities that we already know to be true: the Pythagorean Identities, the Reciprocal Functions, and the Quotient Identities.</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2011/11/13/can-i-see-some-id-please/"><img src="http://img.youtube.com/vi/3NT_oMkMRN4/2.jpg" alt="" /></a></span>
<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/identities/'>identities</a>, <a href='http://fractad.wordpress.com/tag/precalculus/'>precalculus</a>, <a href='http://fractad.wordpress.com/tag/trigonometry/'>trigonometry</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1358/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1358/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1358/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1358/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1358/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1358/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1358/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1358/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1358/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1358/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1358/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1358/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1358/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1358/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1358&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>I Can Relate To That!</title>
		<link>http://fractad.wordpress.com/2011/10/05/i-can-relate-to-that/</link>
		<comments>http://fractad.wordpress.com/2011/10/05/i-can-relate-to-that/#comments</comments>
		<pubDate>Thu, 06 Oct 2011 00:40:48 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Math]]></category>
		<category><![CDATA[calculus]]></category>
		<category><![CDATA[derivatives]]></category>
		<category><![CDATA[related rates]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1350</guid>
		<description><![CDATA[One of my favorite applications of derivatives is solving related rates problems. In this type of problem, two related parameters are changing at different rates over time. For example, throwing a stone in a pool of water creates ripples that &#8230; <a href="http://fractad.wordpress.com/2011/10/05/i-can-relate-to-that/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1350&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>One of my favorite applications of derivatives is solving related rates problems. In this type of problem, two related parameters are changing at different rates over time. For example, throwing a stone in a pool of water creates ripples that expand outward. The rate of change of the area enclosed by the first ripple is <em>related</em> to the rate of change of the radius of the ripple. In this screencast, you can see how calculus helps us solve this type of problem.</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2011/10/05/i-can-relate-to-that/"><img src="http://img.youtube.com/vi/v0L8y-nmsg0/2.jpg" alt="" /></a></span>
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<br />Filed under: <a href='http://fractad.wordpress.com/category/education-2/'>Education</a>, <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/calculus/'>calculus</a>, <a href='http://fractad.wordpress.com/tag/derivatives/'>derivatives</a>, <a href='http://fractad.wordpress.com/tag/related-rates/'>related rates</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1350/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1350/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1350/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1350/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1350/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1350/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1350/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1350/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1350/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1350/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1350/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1350/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1350/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1350/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1350&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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		<title>It&#8217;s Understood Implicitly</title>
		<link>http://fractad.wordpress.com/2011/10/02/its-understood-implicitly/</link>
		<comments>http://fractad.wordpress.com/2011/10/02/its-understood-implicitly/#comments</comments>
		<pubDate>Sun, 02 Oct 2011 18:18:25 +0000</pubDate>
		<dc:creator>fractad</dc:creator>
				<category><![CDATA[Math]]></category>
		<category><![CDATA[calculus]]></category>
		<category><![CDATA[derivatives]]></category>
		<category><![CDATA[implicit differentiation]]></category>

		<guid isPermaLink="false">http://fractad.wordpress.com/?p=1344</guid>
		<description><![CDATA[This screencast is all about implicit differentiation. We use this technique on functions and relations that are difficult to solve for one variable in terms of another (usually y in terms of x). For example, an equation like  is nigh-impossible &#8230; <a href="http://fractad.wordpress.com/2011/10/02/its-understood-implicitly/">Continue reading <span class="meta-nav">&#8594;</span></a><img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1344&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>This screencast is all about implicit differentiation. We use this technique on functions and relations that are difficult to solve for one variable in terms of another (usually <em>y</em> in terms of <em>x</em>). For example, an equation like  <a href="http://fractad.files.wordpress.com/2011/10/eqn.gif"><img class="alignnone size-full wp-image-1345" title="eqn" src="http://fractad.files.wordpress.com/2011/10/eqn.gif?w=584" alt=""   /></a> is nigh-impossible to solve for y in terms of x. However, using implicit differentiation, the impossible can be accomplished with ease!</p>
<span style="text-align:center; display: block;"><a href="http://fractad.wordpress.com/2011/10/02/its-understood-implicitly/"><img src="http://img.youtube.com/vi/jNy_6APv-94/2.jpg" alt="" /></a></span>
<br />Filed under: <a href='http://fractad.wordpress.com/category/math/'>Math</a> Tagged: <a href='http://fractad.wordpress.com/tag/calculus/'>calculus</a>, <a href='http://fractad.wordpress.com/tag/derivatives/'>derivatives</a>, <a href='http://fractad.wordpress.com/tag/implicit-differentiation/'>implicit differentiation</a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gocomments/fractad.wordpress.com/1344/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/comments/fractad.wordpress.com/1344/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godelicious/fractad.wordpress.com/1344/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/delicious/fractad.wordpress.com/1344/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gofacebook/fractad.wordpress.com/1344/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/facebook/fractad.wordpress.com/1344/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gotwitter/fractad.wordpress.com/1344/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/twitter/fractad.wordpress.com/1344/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/gostumble/fractad.wordpress.com/1344/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/stumble/fractad.wordpress.com/1344/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/godigg/fractad.wordpress.com/1344/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/digg/fractad.wordpress.com/1344/" /></a> <a rel="nofollow" href="http://feeds.wordpress.com/1.0/goreddit/fractad.wordpress.com/1344/"><img alt="" border="0" src="http://feeds.wordpress.com/1.0/reddit/fractad.wordpress.com/1344/" /></a> <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=fractad.wordpress.com&amp;blog=10672865&amp;post=1344&amp;subd=fractad&amp;ref=&amp;feed=1" width="1" height="1" />]]></content:encoded>
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