You get a two-fer in this post: my regular precalculus class is getting ready to tackle sequences and series. Even though both topics are covered in one section of the text, I decided to split them into two separate screencasts. Sequences are fascinating things – they pop up in nature all the time (try Googling “Fibonacci Sequence”). Series are just sums of sequences, and for centuries mathematicians much smarter than I have found ways to determine those sums without actually adding together infinite terms!
FracTad's Fractopia 