Adapting the centuries-old game of mancala provides basic exercises on mathematical modeling. 

See several examples of ways to use the Roof Method to find set intersections, unions, and complements on intervals. 

Students in an entry-level algebra class attempt to make sense of the relationship between imaginary zeros and their nonimaginary counterparts.

First-year algebra students used their knowledge of mathematical modeling and rates to decide on the best possible buddy, discovering two models independently and a third, combined model in whole-class discussions.

Support your high school students in the challenging transition from memorization to understanding.

Explore three original problems, the thinking behind their formulation, how they can be solved, and related extensions.