Perimeter

Discover the distance all the way around. The video introduces the concept of the perimeter of a figure. An explanation shows how to find the perimeter of a variety of polygons along with regular polygons. The presentation highlights the importance of using units when determining a perimeter.

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Instructional Ideas

  • Ask classmates to create polygons with given number of sides and perimeter
  • Lead a discussion on why it is important to use units
Classroom Considerations

  • The class should be comfortable with finding sums of multiple numbers
Pros

  • Uses animations to keep track of sums
  • Points out shortcuts that work for regular polygons
Cons

  • None