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February 2015, Volume 20, Issue 6

FEATURES

An Authentic Task That Models Quadratics
Lorraine M. Baron
Selling muffins introduced students to quadratic functions. Communicating with tables, graphs, and formulas helped solidify their understanding.

Going with the Flow: Challenging Students to Make Assumptions
Mathew D. Felton, Cynthia O. Anhalt, and Ricardo Cortez
Future middle school teachers tested the waters of modeling in the classroom with a bath versus shower water conservation problem.

A Blizzard of a Value
Jonathan D. Bostic
To make a Dairy Queen Blizzard problem stand up to scrutiny, look to the Common Core for a recipe.

Preserving Pelicans with Models That Make Sense
Tamara J. Moore, Helen M. Doerr, Aran W. Glancy, and Forster D. Ntow
A model-eliciting activity is a useful tool that allows students’ problem-solving skills and ideas to take flight.

Fracking: Drilling into Math and Social Justice
Katie A. Hendrickson
A community-focused lesson that allows students to explore and model their findings with mathematics can also produce students who are aware of the environment.