This is the fourth in a series of four reports describing a study of 1,614 junior high school mathematics and English students and 69 of their teachers that was undertaken to discover the effects of different teaching behaviors on cognitive and affective student outcomes. This booklet is the working manual used for coder training and includes information on the general procedure and organization of coding, coding of academic response opportunities, types of response opportunity, subject matter checklists, student initiated questions and comments, classroom format, peer tutor identification, dyadic teacher-student contacts, student created contacts, teacher afforded contacts, behavior related contacts, student behaviors, and social contacts as well as a sample copy of the coding sheet. (TJ)