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6-7

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In this interactive, students use ratio reasoning to scale up recipes and explore the proportional relationship between the diameter of a circle and its area. The accompanying classroom activity provides students with practice in making unit conversions and guidance in thinking about direct proportions. This resource is part of the Math at the Core: Middle School Collection.

Use ratio reasoning to scale up recipes and explore the proportional relationship between the diameter of a circle and its area in this interactive from KET’s Scale City.

Use ratio reasoning to scale up recipes and explore the proportional relationship between the diameter of a circle and its area in this interactive from KET’s Scale City.

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