Provided is the manual for the "Think Aloud" program for young aggressive boys which is designed to slow down and inhibit first associations; increase verbal mediation; inhibit immature, irrelevant speech; increase repertory of alternative responses; increase skill in staying with a plan and evaluating outcomes; and facilitate transfer of learned skills to life situations. It is noted that the manual was prepared for use in half-hour daily sessions over a period of 8 weeks. Tasks, which progressively increase in difficulty, involve both impersonal cognitive problems such as puzzles, mazes, and copying designs, and interpersonal problem situations. The program unfolds by first using the "copy cat" game on very simple cognitive tasks to engage the child in reacting to all features of the modeling; "copy cat" is then used to introduce the child to the four steps in dealing with a problem (identifying the problem, developing a plan, monitoring performance, and evaluating performance and outcome), and finally "copy cat" is faded and cue cards standing for each step are introduced to signal the child to verbalize both the question and the answer for himself. Instructions for the teacher, descriptions of materials, recording forms, and puzzle sheets are provided. (SBH)