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Susan A. Peters, Victoria Miller Bennett, Mandy Young, and Jonathan D. Watkins

A sequence of five activities, progressing from concrete to abstract, can help students develop deep understandings of the mean.

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Puppy Love

little problems with big solutions

Jo Ann Cady and Pamela J. Wells

To elicit creative student thinking, this open-ended problem asks solvers to analyze area and perimeter.

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Puppy Love

big solutions to little problems

Edited by Jo Ann Cady and Pamela J. Wells

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

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Robin S. O'Dell

Using a rule as a seesaw helps students steady their understanding of the mean.

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Gina Fill and Linda Watson

This section of the Problem Solvers department discusses the classroom results of using problems presented in previous issues of Teaching Children Mathematics.

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Amy Farrell

This month's problem engages students in statistics, namely descriptive statistics. During the lesson, students will work with two measures of central tendency, the mean and the mode.

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Carmen Petrick Smith and Kris Kenlan

Students investigate how well an online game helps them learn.

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George J. Roy, Thomas E. Hodges, and LuAnn Graul

Students' mathematical intuition about estimation can serve as an entry point for tasks exploring measures of center.

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Solve It! Student Thinking: Suit Up!

big solutions to little problems

Sherry L. Bair and Edward S. Mooney

Solutions to a November 2012 Solve It! problem are discussed, and the procedures used with problem solving are explored.

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Lynn G. Patterson and Kadie L. Patterson

An engaging activity analyzing the average age of U.S. presidents not only integrates history and mathematics but also examines measures of central tendency and its appropriate uses.