Keep from losing your marbles with this colorful tool for whole class management. Use it to recognize positive behavior, count to the 100th day of school, or reinforce basic skills such as skip counting and sight words. Includes 100 marbles, an empty marble jar chart (16 ¾ x 23 ¾ ), a writing chart (17 ½ 24 ), and a bonus 100th Day banner (16 ½ x 5 ½ ).