When tommy's mother hides his favorite toy under a blanket, he acts as though it no longer exists and makes no attempt to find it. tommy is clearly near the beginning of piaget's stage. formal operational concrete operational sensorimotor preoperational?

According to the national health and safety standards: guidelines for out-of-home care, what is the proper adult-to-child ratio for children younger than one year? a. one adult to one child b. one adult to two children c. one adult to three children d. one adult to four children