This video illustrates conditioning reinforcers using bubbles. On screen text says, "Conditioning a new reinforcer through pairing". On screen text says,"Candy has value, bubbles do not". The teacher says, "Candy" and hands a piece to the student. The student accepts and eats the candy, then the teacher says, "Candy" and the child accepts and eats it. Then the teacher holds up a bottle of bubbles, says "Bubbles", and blows bubbles. She says, "Candy" and hands another piece of candy to the student; he accepts and eats the candy. On screen text says, "Pairing bubbles with delivery of candy". The sequence of actions is repeated. The teacher says, "Bubbles, candy" and blows bubbles, hands candy to the student, and the student accepts and eats the candy. This is repeated two more times between the teacher and the student. On screen text says, "Through pairing, bubbles begin to have value". The teacher continues several times to blow bubbles and hand the student candy, and the student begins to respond to the bubbles. On screen text says, "Eventually, bubbles become conditioned as a reinforcer". The teacher continues to blow bubbles and the student begins to play with, laugh, and chase the bubbles with no candy used as a reinforcer. The teacher continues to blow bubbles and the student enjoys chasing the bubbles.