An instructional system that is both efficient and effective should present information so that it is easily processed by learners and so that the cognitive structures resulting from instruction correspond to the structure of the content to be learned. This paper presents a discussion of methods for describing content structure and cognitive…

The nature and specification of goals in teaching a group of concepts affect the type and quality of learning. What is learned is learned as a means to some end. Feedback from end to means regulates learning a given activity. The task or goal structure provided by the environment may play its most important role early in life and gradually decline…