Many students tend to “do whatever first comes to mind” in mathematics classrooms. We should help students cultivate a habit of being analytical and skeptical. One strategy is to pose problems for which recently learned ideas would not work. The speaker will discuss examples of contraproblems involving proportions, measurement, and algebra.

Presentation Format: Preservice and Inservice Session
Grade Band Audience: Preservice and Inservice, 6 to 8