This handbook may serve as a guide in helping teachers to identify children with learning disabilities. Hypothetical cases are presented, giving specific examples of academic and behavioral problems which may be caused by such learning disabilities as visual perceptual disorders, auditory perceptual disorders, motor disorders, orientation disorders, expressive language disorders, and behavioral social disorders. Guidelines and procedures are presented for the teacher who observes in a student the behaviors illustrated in the case profiles. These are intended to assist the teacher in determining whether or not to pursue a formal evaluation. A discussion, based on the diagnostic-prescriptive approach to teaching, offers assistance to teachers in systematically assessing needs, formulating objectives, determining strategies, and monitoring pupil performance. A bibliography of reference materials is included. (JD)