At ADD WAREHOUSE. Program is called Listen, Look, and Think: A Self-Regulation Program for Children by Harvey C. Parker Ph.D. Helps children pay attention in school or when doing homework. It features an endless cassette tape which plays an audible tone at variable intervals. The student listens for the beep while attending to classwork. When the beep sounds, the student checks on a self-recording sheet whether he or she was paying attention to his or her work. No. 0955 $22.00 Endless cassette tape, instruction manual, and student self-recording forms.