This manual describes programs to educate seventh grade "differentiated" students in language arts and mathematics. Differentiated students are defined as those who are about two years behind their peers in a given subject; both academic performance and behavior characteristics are factors in students being encouraged to take the differentiated option in addition to their regular classes. Following a discussion of administrative considerations in implementing the Differentiated Support Option (DSO) program, two teacher-developed handbooks are presented: one on language arts, and the other on mathematics. These handbooks are the teachers' reports of how they conceptualized and used the four support options: (1) re-teaching selected concepts and skills from regular classwork based on student need; (2) giving homework support; (3) emphasizing work habits and study skills; and (4) assessing student need for basic skills and remedial work. Each handbook contains sections describing the educational and community setting, the philosophy of the DSO, and the mechanisms involved in creating the DSO approach while incorporating the four options. Instructional procedures and methods are suggested, sample activities are illustrated, and the expectations of those working with the program are discussed. Each handbook ends with an evaluation of the program from the teacher's perspective and appendices of handouts and exercises. (FG)