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