MAC-CPTM Situations Project
Situation 06: Cross Multiplication
Prepared at Pennsylvania State University
Mid-Atlantic Center for Mathematics Teaching and Learning
18 June 2005 – Rose Mary Zbiek and M. Kathleen Heid
Edited at University of Georgia
Center for Proficiency in Teaching Mathematics
9 December 2008 – Brian Gleason and Shawn Broderick
Click HERE for a Word version
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