Directly, find a missing value. The video demonstrates how to find the fourth value in a direct variation relationship knowing three others. Scholars learn to find the constant of variation and use it to find a missing value.

Concepts

direct variation, one-step equations, solving equations, solving for 1 variable, constant of variation, constant of proportionality

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Additional Tags

math

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Instructional Ideas

• Make the connection between direct variation equations and proportional equations
• Create pairs and have classmates solve different parts of the direct variation problem, with one finding the constant and variation and the other identifying the missing value

Classroom Considerations

• Requires that students understand how to solve an equation for a variable

• This video is hosted on YouTube

Pros

• Uses colors to highlight sections of the problem
• Shows all the steps needed to arrive at the solution 

Cons

• None

Common Core

SL.7.2 7.RP.A.2.c MP1 MP6