Quad - Fun activity. First quad, estimate (can use green m&m's, green pom poms, green beads) then, have students measure against their estimate. Next, students color the crayons the colors of the rainbow. Third quadrant, asks students to color only the items that are green and then count how many they've colored. Last quadrant is a connect the dots, using the alphabet, in the shape of a shamrock. Have fun!