Dan Kalman and Daniel J. Teague
Using ideas of Galileo and Gauss but avoiding calculus, students create a model that predicts whether a fly ball will clear the famous left-field wall at Fenway Park.
Gloriana González and Anna F. DeJarnette
An open-ended problem about a circle illustrates how problem-based instruction can enable students to develop reasoning and sense-making skills.
Mara G. Landers
A measurement-based activity can help students struggling to understand trigonometric functions.
Jennifer L. Jensen
Five problems—relating to gas mileage, the national debt, store sales, shipping costs, and fish population—require students to use functions to connect mathematics to the real world.
Christopher E. Smith
Considering circles in taxicab geometry helps students with Euclidean concepts.
Roberto López-Boada and Sandra Argüelles Daire
Students use elementary algebra concepts to solve trigonometric and logarithmic equations and systems.