How many tickets?

Author: Claire Riddell
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This article introduces a task designed around SMP 7: Look for and make use of structure, and it encourages students to explore structure through multiple representations. Each month, elementary school teachers are presented with a problem along with suggested instructional notes and asked to use the problem in their own classrooms and report solutions, strategies, reflections, and misconceptions to the journal audience.

Contributor Notes

Claire Riddell,, is an assistant in research at the Florida Center for Research in Science, Technology, Engineering, and Mathematics (FCR-STEM) at Florida State University.

Edited by Michael Flynn,, the director of mathematics leadership programs at Mount Holyoke College in South Hadley, Massachusetts. Each month, this section of the Problem Solvers department features a new challenge for students. Readers are encouraged to submit problems to be considered for future columns. Receipt of problems will not be acknowledged; how-ever, those selected for publication will be credited to the author. Find submission guidelines for all departments at

(Corresponding author is Riddell author is Flynn
Teaching Children Mathematics


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