This booklet, the second in a series of eight describing the tenth-cycle Teacher Corps project of the University of Nebraska-Lincoln and the Lincoln Public School System, describes the diagnostic-prescriptive (D-P) instructional model used as the basic teaching process in the project. Key concepts in the D-P approach to teaching are presented, and the use of the process in relation to the competency based teacher education model described in booklet four is described. Steps in implementing the D-P teaching process are identified as: (1) diagnosing learner needs; (2) establishing desired learning outcomes; (3) planning and implementing prescriptions; and (4) assessing learning outcomes and program results. Record keeping in the D-P process is performed using two profiles: an individual learner profile and a group profile. Guidelines for their use are presented, and examples from each part of the two profiles are presented in the appendices. (MJB)