Group Activity Cards
Use groups of 3.
Materials: Index cards, grid paper

Find Your Match 
Each group will need 5 index cards and several sheets of grid paper for each student. Copy each area below onto an index card. Then shuffle the cards and place them face down on the table.
Areas to put on cards: 
18 square units 
6 square units 
10 square units 
21 square units 
20 square units 
Play begins with the top card being turned over. Each of the three players is to find as many different ways to represent this area using rectangles and parallelograms. At least one area must be represented by a parallelogram. Students should draw the figures on their grid paper. The player to find and draw the most figures with the correct area wins. Play continues until all cards have been used.
