Growth and Development Children progress to new stages of development when they are ready. That progress can differ by weeks or even months among children of the same age. Stages of Play An infant enjoys playing alone. By the time, a child becomes a preschooler, he or she enjoys watching and imitating others, with only some interaction during play. Promoting Intellectual Growth Reading is an excellent way to help your child grow intellectually. It provides time for special attention between parent and child, encourages the child's later reading success, and fosters language and speech development.