Many everyday human behaviors are made up of a sequence of several simpler behaviors. In order to teach children to perform these complex behaviors, parents sometimes use a technique called chaining. First, parents identify each of the simpler component behaviors and determine the order in which these simpler behaviors are performed. Parents then start with the first task in the chain. When the child has mastered that element, parents then teach the second element together with the first and reinforce this effort. When these are performed satisfactorily, they move on to elements one, two, and three and so on, adding one behavior at a time. The behaviors are not taught in isolation; hence the term “chain.”
Question：Using the example of washing hands, explain the concept of chaining behavior.
Chaining behavior is a technique used by parents to teach children a sequence of complex behaviors. For example, professor taught his daughter how to wash her hands. He divided this complex behavior into 5 steps, and taught his daughter one step at a time. He first showed his daughter step 1 and practiced it with her for a couple of days. When she has mastered this action, he showed her step 2 and let her practice both steps for another few days until she can do both by herself. Then he added the third step after, and also let her practice for a while until she can do them all. For the last two steps, he did the same thing as the previous three steps. Finally she could finish the hand washing all by herself.