Terminally evaluated was a 3-year (1969-1972) Title III Idaho project to develop an auditory perceptual and language development training program involving the screening of 657 children in grades 1 and 2 in four schools and a first grade demonstration class for 192 perceptually handicapped children. Of 346 children identified to have auditory imperception, 48 Ss (16 experimentals, 16 controls, and 16 alternates) were selected as participants from each school. A speech/hearing clinician in each school administered audiometric, speech, language, and reading/spelling tests; and trained experimental Ss (in groups of two) 1/2 hour per day 4 days per week in sequential motor, auditory, and visual perceptual tasks; and phonics. The following were among effective project outcomes: employing speech and hearing clinicians for diagnosis and remediation, conducting remediation classes in project schools so the Ss could remain in regular classes, providing workshops on auditory learning problems, and conducting inservice training for project teachers and clinicians. Findings from tests such as the Wepman Auditory Discrimination Test indicated comparable gains by experimentals in all schools. Findings from the demonstration class showed gains greater than regular first grade gains on tests such as the Metropolitan Readiness Test. Visitors wrote impressions of the project. Cultural and nonpublic agencies participated. Dissemination activities included a handbook on child development potential. (Appendixes contain items such as test forms, a training program profile, a teacher questionnaire, and Yale charts.) (MC)