1. Introducing Concepts Teaching the concepts of ON with examples and not-examples Based on Theory of Instruction by Engelmann & Carnine

2. The boys are on the steps.

3. The boy is on the path.

4. The boys are on the bench.

5. The boys are not on the bench.

6. The boy is not on the steps.

7. Are the boys are on the steps?

8. Are the boys are on the bench?

9. Is the boy on the steps?

10. Are the boys are on the bench?