Learn how to use and connect representations with lessons on linear functions.
Maria E. Nielsen and Jonathan D. Bostic
Eric L. McDowell
Enhance students' number sense and illustrate some surprising properties of this alternative operation.
Clips about paper folding and lottery numbers inspire questions about exponential growth and probability.
G. Patrick Vennebush, Thomas G. Edwards, and S. Asli Özgün-Koca
Students analyze items from the media to answer mathematical questions related to the article. This month's clips involve finding a mathematical error in an advertisement as well as working with ratios and proportions.
Sheldon P. Gordon
We tell students that mathematical errors should be avoided, but understanding errors is an important tool in developing numerical methods.
S. Asli Özgün-Koca
Student interviews inform us about their use of technology in multiple representations of linear functions.
Jason Silverman, Gail L. Rosen, and Steve Essinger
Use digital signal processing to capitalize on an exciting intersection of mathematics and popular culture.
Economics can be an avenue for teaching such algebra concepts as graphing curves, writing linear equations, solving systems of equations, and shifting graphs.
Connie Colton and Wendy M. Smith
A multiphase lesson on selling T-shirts guides students from single-variable equations to linear relationships.
Nicholas H. Wasserman
The practice of problem posing is as important to develop as problem solving. The resulting explorations can be mathematically rich.