The purpose statement establishes the relevance of the lecture. For example, if a reading were assigned prior to lecture, list it on this slide. Likewise, if students should be familiar with a laboratory procedure, mention it here. The final portion of the introductory section is a statement of learning objectives. Learning objectives derive from the course goals.
Objectives are smaller, concrete statements of the learning goals.
The objectives would be the stair steps, the smaller units that advance the learner to the goal. Objectives should reflect the goals of the lesson. This description is phrased in measurable terms. Secondly, objectives specify the conditions under which learners will be expected to apply or exhibit their new learning. The body of the presentation contains the lecture's informational content.