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Hear from an expert about the importance of the practice and what is needed for its successful implementation.

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Ratio, Rate, Proportion Problems

Fractions > Ratio, Rate, Proportion > Learn What Works

Dr. Lewis demonstrates how to work through two examples of problems involving ratios. Related Files: Ratio, Rate, and Proportion Problems (Sample Material)

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Expert Interview

1425 views
Video

Learning to Think Proportionally

Fractions > Ratio, Rate, Proportion > Learn What Works

Dr. James Lewis discusses what it means to think proportionally and offers examples from everyday contexts. He describes the conceptual progression toward working with cross-multiplication and...

Resource Type

Expert Interview

1268 views
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