This handbook offers suggestions for teachers who have children with learning disabilities or mild mental retardation in their regular classrooms. A brief discussion is presented on practical issues regarding mainstreaming and on the potentials and future opportunities for retarded individuals. Procedures for preparing nonhandicapped children to accept a handicapped classmate are described. The teacher's obligations in working with special education teachers and parents in developing an individualized education program are pointed out. Specific class activities and games modified to encourage participation by slow learning and/or retarded children are described. Curriculum suggestions are also offered for older retarded children in the areas of mathematics, literature, reading and study skills, social studies, and written reports. Bibliographic information is included on readings for children, teachers, and parents. Supplementary educational resources are listed. (JD)