Visual Aids help the teacher to accomplish his/her purpose in teaching: Making the Word of God so plain that it is easily:

Variety helps accomplish those purposes in the following ways. They:

1. Arouse interest.
2. Hold attention.
3. Furnish information.
4. Make learning:
   1. Faster,
   1. More Enjoyable &
   1. More Permanent.
5. Make obscure points plain.
6. Clarify understanding.
7. Stimulate imagination.
8. Bring the remote in time & place to the immediate.
9. Encourage discussion.
10. Develop memory retention.
11. Motivate action.