This booklet offers practical, easy-to-read suggestions for teachers, paraprofessionals, and parents to help them understand intellectual development and intellectual disabilities. The first section highlights some of the factors involved in intellectual development and the importance of being sensitive to different stages of learning. The second section deals with intellectual disabilities and suggests a variety of learning activities to enhance development. The role that the teacher plays in fostering intellectual development is emphasized. The booklet should prove helpful in training teachers and caregivers who work with handicapped children in a regular classroom. Cartoon-style drawings illustrate the text. (CS)