Do your students believe that equivalent ratios are based on additive relationships rather than multiplicative ones?

Learn about the specialized pedagogical content knowledge you need to teach ratios and proportions effectively in grades 6-8. The authors demonstrate how to use this multifaceted knowledge to address the big ideas and essential understandings that students must develop for success with ratios and proportions--not only in their current work, but also in higher-level mathematics and a myriad of real-world contexts.

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