You are a pre-k teacher, starting a new year with a class of four- and five-year-olds. you have begun to notice that during class time, four-year-old josh stays focused only when using some form of electronic media, such as when he is watching a short video or playing with an educational software program. his attention wanders whenever the class is involved in other types of activities. an interview with his parents revealed that josh is the youngest of five children, and from a very early age, he has watched television an average of at least three hours a day.