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Iroday there is a party in Ms. Lisa’s inclusive preschool classroom. The sky is clear, and birds are singing. The preschoolers and teachers have been eagerly awaiting this day. The children have been putting a butterfly on the classroom wall each day that they have been in session, and finally, they are putting up the 100th butterfly. The preschool staff, children, and their families are celebrating this day with a picnic. They put 5
Han et al. (Sun,) studied this question.