Show children that the big ball goes into the big basket and the little ball goes into the small basket. Have children take turns placing the larger objects in the big basket and the smaller in the little basket. Develop turn-taking with peers. Adult facilitator demonstrates how children should operate the switch and demonstrates program use. Children then take turns deciding who the shoe will fit as teacher holds up each shoe in the pile.
Teacher fits shoe to child's choice to see if it fits.
If not, class discusses which shoe in pile would fit better. To develop concept of comparative sizes through matching. Pairs of children use program together in turns during free-play time. After children use activity a few times in Explore and Discover mode, teacher should set it up in Question and Answer mode and note which children are having difficulty with the concept. Teacher has children gathered in circle and plays guessing game using size comparison and size words.