Measure Quarter and Three-Quarter Rotations

This Measure Quarter and Three-Quarter Rotations video also includes:

Measuring angles is a mysterious task. What do those degrees mean? A clock is used to show what each angle looks like on a circle as the hands move around to mark time. The lesson explains that rays are just like the hands of a clock, and that the openings created by two rays in a circle form the angles we measure. A super way to teach a tricky concept! 

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CCSS: Designed
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  • The lesson is developmentally appropriate and provides highly concrete examples to support the learning process
  • The visual nature of the example would be excellent for meeting multiple learning needs

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Common Core