Below are the Common Core State Standards that most closely relate to the following lesson.
Supply and Demand, Lessons From Toy Fads. ~ http://www.econedlink.org/e961
3.MD.B. - Represent and interpret data.
4.MD.B. - Represent and interpret data.
5.G.A. - Graph points on the coordinate plane to solve real-world and mathematical problems.
8.F.B. - Use functions to model relationships between quantities.
MP1 - Make sense of problems and persevere in solving them.
MP4 - Model with mathematics.