This manual provides guidelines for implementing the instructional program in English/writing prescribed for the Basic Skills Project of the Phoenix, Arizona, Union High School District. The project supplements instructional efforts for students whose basic skills in reading, English/writing, and mathematics are in greatest need of improvement. The instructional program uses an individual diagnostic/prescriptive approach, and the manual describes the process of diagnosing student strengths and weaknesses through the preparation of diagnostic profiles and student folders. The following components of instruction and their implications for Title I classes are discussed: educational goals and objectives, instructional materials, activities, instructional diagnosis, learning time, evaluation, and time spent on a task. Also discussed are the maintenance of student records, the use of instructional aides, the conduct of Parent Advisory Council meetings and other staff/inservice meetings, and monitoring procedures. The manual includes the Basic Writing Skills Record, a form designed to provide data on a student's achievement in basic spelling and English skills, diagnostic information, and a record of student progress on specific writing skills. (MJL)