Students must be able to relate many representations of slope to form an integrated understanding of the concept.
Courtney R. Nagle and Deborah Moore-Russo
Sonali Raje, Michael Krach, and Gail Kaplan
Stereochemistry and three-dimensional analysis constitute significant parts of this student activity.
S. Asli Özgün-Koca, Michael Todd Edwards, and Michael Meagher
The Spaghetti Sine Curves activity, which uses GeoGebra applets to enhance student learning, illustrates how technology supports effective use of physical materials.
Christopher E. Smith
Considering circles in taxicab geometry helps students with Euclidean concepts.
Chalk Talk and Claim-Support-Question are two routines for developing students' ability to use multiple representations and encouraging classroom discussion.
Kerri Richardson, Anne Reynolds, and Catherine S. Schwartz
Rich mathematical tasks—here, finding and categorizing the quadrilaterals that can be made with vertices on a 4 × 4 grid—can promote adaptability in any classroom.
Jeffrey J. Wanko, Michael Todd Edwards, and Steve Phelps
The Measure-Trace-Algebratize (MTA) approach allows students to uncover algebraic relationships within familiar geometric objects.
Linda L. Cooper and Martin C. Roberge
Let's go wading! Students connect fundamental mathematics concepts in this real-world, problem-solving field experience.
Nicole A. Bannister
This article describes a series of “food labs” designed to help calculus students make sense of abstract volume concepts. The methods include slicing (e.g., disk, washer, cross-section) and shell methods, and the author discusses how to use them in the classroom.
This is a description of a collaborative investigation by mathematics teachers into the numbers of dimensional boundaries for n > 2. Functions are fit to the patterns observed, and a relationship to Pascal's triangle is noted.