Life Science AB is designed for students who do not plan to go to college. The course utilizes an investigative approach and emphasizes student involvement in the study of living organisms. This document contains the course outline and provides guidance to teachers in implementing the objectives and lessons of the course. Contents include: (1) summary of representative objectives; (2) time schedule and sequences of units; (3) teacher responsibilities; (4) guidelines for assigning homework; (5) units of study (containing the objectives, content outlines, and continuum skills for seven units); (6) teacher-directed lessons (providing three detailed samples); (7) listing of teaching strategies; (8) evaluation procedures; and (9) tips for parents. Appendices contain a listing of resources and the secondary science continuum for the Los Angeles Unified School District. (ML)