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Mary E. Pilgrim

A two-part calculus activity uses true-false questions and a descriptive outline designed to promote active learning.

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Marshall Lassak and Renee Fietsam

Consider the following problem, which was the MT Calendar problem for December 3, 2006:

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Caleb L. Adams

Use cubic polynomial functions before increasing the difficulty with irrational values.

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Readers comment on published articles or offer their own mathematical ideas.

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Readers comment on published articles or offer their own mathematical ideas.

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Heather Lynn Johnson

This article explores quantitative reasoning used by students working on a bottle- filling task. Two forms of reasoning are highlighted: simultaneous-independent reasoning and change-dependent reasoning.

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Jon D. Davis

Using technology to explore the coefficients of a quadratic equation leads to an unexpected result.

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Daniel R. Ilaria, Matthew Wells and Daniel R. Ilaria

Students analyze items from the media to answer mathematical questions related to the article. This month's problems involve reading slopes from graphs, finding average rates of change, and interpreting linear graphs.

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Walter J. Whiteley and Ami Mamolo

Investigating rates of change in volume without calculation leads to an enriched sense of the optimization process and encourages reflection and connection among different approaches.

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Lorraine M. Baron

Assessment tools–a rubric, exit slips–inform instruction, clarify expectations, and support learning.