Described is a 3-year Colorado preschool project for identification of learning disabilities and behavioral characteristics in 3-to-6-year-old children and subsequent remediation through prescriptive teaching and a home program. Considered in the project overview are inservice, intake, and diagnostic procedures; the interdisciplinary approach; parent helpers; and evaluation. Noted is identification by four teacher diagnosticians at four centers through referrals by outside professionals and community agencies. Diagnosis is said to involve attention to visual perception, visual motor, and all aspects of auditory functions which affect speech and language capabilities. Listed are disability symptoms such as staring rather than following a moving target with the eyes. Given are diagnostic procedures such as child copying of thumb twiddling. Treatment methods for each disability area are stated. Listed are materials and activities to improve specific deficits in the visual autonomic, auditory autonomic, and auditory somatic areas. A sample classroom activity schedule is given. Among third year evaluation findings included are that 65 children were diagnosed to be learning disabled; that multiple disabilities were common, with the majority of problems classified as word sound deafness and perceptual blindness; and that testing results showed gains on tasks indicative of learning disabilities and on IQ scores. Appended are forms such as a diagnostic evaluation form, individual prescriptive teaching plans, and a pupil rating form for grade 1. (MC)