Suppose that a young woman who lives in your apartment building recently had her first child. She has visited you on several occasions and knows that you are taking a course in life-span development. She worries that her baby boy sleeps "almost all the time." In addition, her son "thrashes" at things and doesn't seem coordinated. She fears that this might not be normal. Try to direct the conversation toward the development of motor skills as well as sensory and perceptual development, addressing issues of intermodal perception and perceptual motor coupling. What strategies might you suggest to your friend for helping her infant develop competently?