This Child Development Associate (CDA) training module is designed to help CDA interns to understand, assess, and foster the development of children's communication skills. Objectives are stipulated, activities for achieving each objective are suggested, and an assessment checklist is provided. A study guide emphasizes (1) the nature and use of communication skills, (2) normal development of communication skills, (3) language assessment procedures, (4) special help for children with special needs, (5) individual differences in the development of communication skills, (6) teacher techniques, and (7) the importance of the preschool teacher in encouraging children's expressive and receptive skills. A check sheet and guidelines for language assessment are included. (Author/RH)