This learner resource, "SISFFIT036 Instruct group exercise sessions," is a comprehensive guide for fitness instructors. It covers preparing the exercise environment, pre-screening participants, briefing participants on safety and responsibilities, delivering the session using various instructional techniques, and finally, evaluating the session and documenting findings. The guide details different exercise types, equipment checks, participant characteristics, and methods for addressing participant needs and difficulties. Specific attention is given to safety protocols and modifications for various participant groups, including antenatal, postnatal, and menopausal women, and older adults. The resource also provides links to relevant external resources and tools.