This study had as its purpose the investigation of visual-verbal presentation modes when used for instruction in different types of learning tasks with learners of differing mental abilities. Five parallel experiments were conducted, each for a different learning objective or task (identification, comparison, classification, generalization,…

The relationship between a person's behavior and the interaction with his immediate environment is discussed as a shaping process. The behavior that is shaped is always that which is directly and crucially involved in the choice he makes, the response he makes, and the way that response affects him in the given situation. The abstraction process…