Encouraging Developmental Play for Preschoolers

During a well-child visit, the nurse is assessing a 4-year-old boy's development and growth. The child is able to use scissors to cut a straight line, draw a simple person with at least three recognizable parts, and can copy a square shape. The nurse is aware that these milestones are important indicators of the child's development. Which of the following activities is most appropriate for the nurse to encourage for this child to support further development in the preschool age group?