The University of Arizona: BRUH – Ratios, Proportions, and Proportional Reasoning Grades 5-9 (IMPACTS-MS)
Ratios and proportional relationships are critical areas for middle school mathematics and are foundational for further study in mathematics and science, as well as being useful for everyday life. The teaching of ratios and proportional reasoning should build on students’ work in measurement in multiplication and division in the elementary grades, while also further developing...
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