In an inductive model, the lesson begins with the presentation of specific data and facts and gradually, through the process of investigation and reasoning, the students are led to form the generalization, rule, or concept definition. Induction is generally believed to be more conducive to stimulating thinking. An advance organizer is presented at the beginning of the lesson and is usually a general statement or analogy that helps the learner place the material to be learned in context. He cautions against overly explicit specification. An advance organizer can be a statement made by the techer or an experience or a reading assignment.
Organizers can be expository or comparative.
Expository Organizers . These begin at a higher level of generality than the concept to be presented. Comparative Organizers . These connect new learning to previously learned materials or to familiar experiences through analogy and comparisons. Advance organizers are generally considered part of a deductive lesson plan but might be used to set the stage for an inductive lesson.