This lesson focuses on how to read and interpret stock graphs. National standards addressed are: 1) Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation. 2) Use ration and rate reasoning to solve real-world and mathematical problems. 3) Understand the concept of a unit rate a/b associated with a ratio a:b with b≠0. This lesson was taken from the book, Money, Money, Money by Nancy L. Wilkinson. It features a detailed, common core