The document discusses behavioral objectives and their importance in teaching. It defines objectives as statements that indicate the purpose or goals of an undertaking. There are three domains of objectives: cognitive, affective, and psychomotor. When writing objectives, there are five essential rules to follow: 1) describe the expected student behavior, 2) use an outcome verb, 3) describe criteria for acceptable performance, 4) specify conditions of performance, and 5) measure one outcome verb per objective. Objectives help guide lesson planning, materials selection, and assessment. The cognitive domain involves six levels of learning objectives from simple knowledge to more complex synthesis and evaluation.