Parents were asked to complete an information form when they registered their children in an early childhood education center. Answers to a question on the form concerning each child's favorite play activities at home were collected and examined in terms of sex differences. The parents in this study reported the same sex difference in children's play activities that have been observed in preschool settings. More boys than girls play with vehicles and blocks at home and in the preschool setting. More girls than boys are involved in art activities and dramatic play. The question might be: does the home play influence the preschool play or does the preschool play influence the home play or does the play of one setting reinforce and interact with the other. Certainly, the findings again illustrate the powerful influence of society's traditional attitudes toward sex roles. A 31-item bibliography concludes the document. (PCB)