Levels of Interaction

Teaching Others = interaction on the part of the learner. 

Reading = interaction on the part of the learner.

Discussions = interaction on the part of the learner.

Lecture = interaction on the part of the learner

Audio/Video = interaction on the part of the learner.

Practical / Real Life Application = interaction on the part of the learner.

Demonstration = interaction on the part of the learner.