The effectiveness of using the Language Master to emphasize reading skills with 10 students (ages 7 to 13 years) in a special class for the mentally retarded was evaluated. Nine behavioral objectives were formulated in the areas of improved word recognition, improved understanding of basic concepts, and improved word attack skills. The word-picture program (teaching recognition of nouns, verbs, and basic concepts) and the phonics program (teaching sound blending, consonant blends, and word analysis skills) were utilized as well as teacher made programs. The Slosson Oral Reading Test, the Boehm Test of Basic Concepts, and the Likert Rating Scale were used to objectively analyze achievement of objectives. Seven of the nine objectives were achieved. (Appended are a brief literature review, a listing of materials and equipment, a rating form, an instructional materials evaluation form, and a program calendar. (DB)