 # Recognize and Represent Proportional Relationships between Quantities: Ratio, Proportion, Cross Multiply, and Divide

##### This Recognize and Represent Proportional Relationships between Quantities: Ratio, Proportion, Cross Multiply, and Divide video also includes:

Review three video clips for one major concept. The resource contains three short clips to introduce the idea of ratios and proportions and how to solve a proportion. After watching the video, partners use their noses to push pom poms across the floor and express the distance to time as a ratio. The extension to the activity suggests changing the variables to provide multiple ratios to explore.

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CCSS: Designed

##### Instructional Ideas

• Create ratios that exist within the class, such as boys to girls, brown eyes to blue eyes, etc.
• Lead a discussion on why the presented method of solving a proportion is mathematically sound
##### Classroom Considerations

• Requires an open space on the floor
• One part of the Math at the Core MS: Ratios series
##### Pros

• Includes a set of discussion questions to use with the class
• Contains a list of materials needed for the activity

• None