Two Lane Road

Two vehicles move at a constant rate of speed toward each other, but when exactly will they pass? Pupils use still images from a video to determine the rate of speed and when the two cars meet. Then, they watch the complete video to learn the correct answer.

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CCSS: Designed
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Instructional Ideas
  • Use included clues to determine where the video was taken (which side of the street the cars drive on for one)
  • How could police apply the same mathematical formula to stop a stolen vehicle?
Classroom Considerations
  • Relies on prior knowledge of rate formulas and systems of equations
  • Students solve the problem using various math models
  • Versatile lesson great as homework, group work, or completed independently in class
  • None