Group Activity Cards
Geometry
Number of players: 4
Materials: Grid paper, pencil

Hit or Miss 
Each group member copies onto grid paper two coordinate planes identical to the one below. Each group member draws a design on one of his or her coordinate planes by shading at least eight squares. Each shaded square must share a side with another shaded square.
In turn, three group members try to guess the fourth's design by calling out coordinates of points. Each group of three is allowed a maximum of twentyfive guesses. Try to guess the fourth group member's design from his or her responses"hit"if the coordinate names a point contained by the design and "miss" if it does not. (Each threesome uses one of the blank coordinate grids to plot "hits" and "misses.")
