The staff of the Individualized Language Arts Diagnosis, Prescription, and Evaluation Project, a funded ESEA Title III program, has developed methods based on a diagnostic-teaching framework designed to analyze students' writing skills for grades 1-12. The program structure also provides teachers with methodology for developing and reinforcing other language skills. The project is stated to be oriented toward discovery and its techniques suitable for many groups, graded or non-graded classes, and various classroom organizations. Rationale, guidelines, activities, procedures, strategies, specific examples, and results are provided. The curricular techniques employed by the program are considered transferable to other schools, with particular relevance for those districts consisting of large numbers of disadvantaged children whose language needs are believed to be especially critical. Contact persons furnishing additional information about the project are cited. (AM)