Self-paced instruction -- Each student learns as fast as they are capable independently of others, and is free to specialize in their own interests.
Content chunking -- Material is broken down into small units. Prerequisite chunks must be learned before superrequisite chunks.
Unit mastery -- Each unit must be mastered before students can move onto superrequisite units. This means students must score above a certain percent on each unit test before proceeding. Tests can be repeated multiple times.
Statistical tracking -- A later innovation. Students' progress can be tracked statistically to compare their learning speed on individual units against their overall learning speed. This way if a student is having trouble on a particular unit, intervention can be taken.
