Ratio & Proportional Reasoning

Multiplicative comparison, ratios, rates, proportions, percent, scaling

2 insights

Insight 11 6-8

Percent Is a Relationship

This DMT Insight explains percent as a relationship between a quantity and a reference quantity (100%) and shows how bar models,...

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Insight 52 3-6 MLP

Scaling and Comparing

This DMT Insight explains how students move from additive to multiplicative reasoning, shifting from "how many more" to "how...

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