Speed through a direct variation example. The presented problem uses a distance-rate-time problem as an example of a direct variation problem. Using the slope between two points of time and distance, the video shows learners how to calculate the rate. Then, using the calculated rate, pupils see how to determine other quantities related to the distance equation.

Concepts

distance rate time problems, direct variation, rates, slope, slope formula, linear equations, linear equations applications, solving for 1 variable, solving equations

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Additional Tags

math

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Instructional Ideas

• Compare the rates from zero to two, two to five, and zero to five
  

Classroom Considerations

• Assumes the class knows the slope formula
• Individuals should be able to solve one-step equations

• This video is hosted on YouTube

Pros

• Shows the steps required to get to the solution
• Highlights information needed to solve the problem

Cons

• None

Common Core

7.RP.A.2.d 8.EE.B.6 MP1 MP6