A Geometric Sequence is a list of numbers that is created by a common ratio. I taught Sam how to identify the ratio, and the recursive and explicit formulas. The recursive formula is used when we want to find a term, and we know the term previous to it. The Explicit formula is used when we know the first term. Sam worked questions 1-35 odd on p. 614.
I started teaching her about Arithmetic Series. A series is an indicated sum of an Arithmetic Sequence. I showed her the summation notation, and worked a few examples. We will continue next session.