3rd Grade Math Centers

Geoboard Squares

Materials: geoboards, rubber bands, geoboard paper

1. Use a rubber band to make a square on your geoboard. Check to
   see that your shape has four right angles and four sides of equal
   length.


2. Use a ruler to draw your square on geoboard paper.


3. Make a square that is larger or smaller than your first square.
   Draw your new square on geoboard paper.


4. Repeat until you have made as many different sized squares as
   you can.


5. Write about your work:
   
   
   • How many different sized squares did you find?
   
   
   • How did you check that each shape was really a square?
   
   
   • How did you check that your squares were different sizes?