Building Proportional Reasoning

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Building Proportional Reasoning is designed to assist K–8 math teachers as they strive to help students become more proficient and more comfortable working with multiplicative thinking and proportionality. It highlights approaches to proportional thinking, suggests good questions to ask to bring out important ideas, and helps students develop and hone their thinking.

For each proportional reasoning concept, teachers will find:

• Background to the mathematics related to proportionality.
• Suggestions for appropriate representations, including manipulatives.
• Suggestions for explaining ideas to students, or cautions about misconceptions or situations to avoid.