This department showcases students' in-depth thinking and work on previously published problems. The August 2012 problem scenario leverages back-to-school shopping advertisements for this real-life scenario about making purchases using discount coupons. To access the full-size activity sheet, go to http://www.nctm.org/tcm, Back Issues.

Contributor Notes

Kevin Phillippi, kevin.phillippi@sbcusd.k12.ca.us, is the Mathematics and Science Coordinator for the San Bernardino School District, California.

Edited by Jane M. Wilburne, jmw41@psu.edu, an associate professor of mathematics education at penn State Harrisburg in Middletown, pennsylvania. each month this section of the problem Solvers department discusses the classroom results of using problems presented in previous issues of Teaching Children Mathematics. Find detailed submission guidelines for all departments at www.nctm.org/tcmdepartments.

(Corresponding author is Phillippi kevin.phillippi@sbcusd.k12.ca.us)(Corresponding author is Wilburne jmw41@psu.edu)
Teaching Children Mathematics

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