Twelve proficient peer models without disabilities demonstrated a response chain for a targeted learning task each day and described the steps to three classmates with developmental disabilities, who observed. The peer models performed the response chains accurately and quickly and the students with disabilities acquired the response chains. (DB)

This report summarizes the results of research studies on instructional practices that significantly affect the cognitive, language, or mental abilities of students with disabilities. The investigation reviewed current research on instruction of students with moderate disabilities and sought to identify effective instructional practices. The steps…