Learning sets programs were administered to preschool deaf children from a variety of representative educational programs throughout the southwest to improve their visual perception skills. The concept of learning sets was described as progression from trial-and-error learning to immediate problem solving by insight. The project consisted of six 1-year phases. Documentation of deficits in visual perception of preschool deaf children occurred during the initial phase. Phases II through V comprised the development of a treatment program for strengthening visual perception by problem solving and free play. Problem solving involved the child's discriminating commonalities and differences within stimulus sets to earn reinforcement. Free play included the child's exposure to eye-hand coordination toys in a free play setting. Phase VI featured identification of variables, compilation of descriptive data, statistical and test consultation, and data analysis. Main independent measures were five subtests of the Frostig Developmental Test of Visual Perception and the four subtests from the Illinois Test of Psycholinguistic Abilities. The study's important finding was the statistically significant increment in visual perception skills of the problem solving group relative to the control group as assessed by performance on the Frostig. (CB)