Remember when you first learned long division, you sometimes had to deal with a repeating decimal? In this video, I introduce the concept of a convergent series by relating it to that idea. We will also discuss the difference between a sequence and a series, and how to use a sequence of partial sums to find the sum of a series. Duration: 10:52

A couple thousand years ago, Zeno posed a number of brain-melting paradoxes. We resolve one of those paradoxes using a type of series called a geometric series. Duration: 7:07

In this Numberphile video, Dr. James Grime explains two of Zeno's Paradoxes. Along the way, he also demonstrates the proper pronunciation of the word "tortoise." Duration: 12:04