Gagne's theory outlines five categories of learning outcomes - verbal information, intellectual skills, cognitive strategies, motor skills, and attitudes. Different types of instruction are needed for each category. The theory also describes nine events of instruction that should be followed to effectively facilitate different types of learning according to the five categories. These events include gaining attention, informing learners of objectives, stimulating recall of prior learning, presenting new material, providing guidance, eliciting performance, giving feedback, assessing performance, and enhancing retention and transfer.