Cowabunga!, Grade 3


Students explore how the same perimeter can enclose different areas, and the same area can have different perimeters, by making “farms” of paper cows and wax-stick fences. Includes instructions for Grade 3 and hands-on materials for a small group of 4 students.

Activity Details

Math skills covered

  • Find the area of a rectangle by multiplying side lengths (3.MD.C.7.a)
  • Support students in understanding perimeter (3.MD.D.8)
  • Exhibit rectangles with the same perimeter and different areas or with the same area and different perimeters (3.MD.D.8)


What’s included

Digital resources

  • Teacher Guide for Grade 3
  • Display Slides for Grade 3

Hands-on materials (for 4 students)

  • Pack of 1″ cow tiles (100 pieces)
  • Pack of wax sticks