Sabrina R. Goldberg
Introduce mixed-ability classes to a project exploring famous mathematicians and scientists and ignite students’ math interest.
Hyewon Chang and Barbara J. Reys
Using Clairaut’s historic-dynamic approach and dynamic geometry tools in middle school can develop students’ conceptual understanding before they encounter formal proof in geometry.
Alfinio Flores and Melina D. Priewe
Students explore multiplicative comparisons and the meaning of remainders using their own concrete representations, including orange wedges.
Signe E. Kastberg, Beatriz S. D’Ambrosio, Kathleen Lynch-Davis, Alexia Mintos, and Kathryn Krawczyk
A Cherry Syrup problem can build links between ratio and graphing.
Anne Roche and Doug M. Clarke
Students display a wide variety of creative mathematical thinking and misconceptions when they complete a classroom task that focuses on proportional reasoning.