Sketch Angles That Are Multiples of 10 Degrees Using a Protractor

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We know a protractor can be used to measure an angle, but can it be used to draw or sketch an angle? Find out how that handy half-circle can be used to sketch angles that are multiples of 10 degrees. The narrator needs to build a skateboard ramp with a rise of 20 degrees. She works through each step, from creating a ray, to marking degrees, to drawing a second ray. The step-by-step process is reviewed to solidify the concept. 

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CCSS: Designed
Classroom Considerations

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Pros

  • Good modeling is used throughout the lesson
  • Estimation and logical reasoning is used to find common mistakes and to ensure the work is correct
Cons

  • None
Common Core