Intersecting Angles and Streets

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Students explore the properties of angles, search city maps for intersecting streets, and then design their own street intersection.


  1. Explore how a lone angle also creates a second angle, and they always add up to 360º. Here's the app and the worksheet to go with this step.
  2. Explore how 2, 4, 6, or even 8 intersecting angles still add up to 360º using this second app and this second worksheet.
  3. Browse online city maps (Google Maps, Open Street Maps, etc) to find an interesting intersection of streets. Measure these angles and check that they also add up to 360º.
  4. Create their own intersection of streets. They'll label the street names, mark interesting sights, and measure each angle, ensuring that they add up to 360º.

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