If the child doesn't do homework, he will get a low grade. The parent allows unpleasant, but natural, consequences to happen when a child does not act in a desirable way. Logical consequences are arranged by parents. The consequence must logically follow the child's behavior. For example, not having clean clothes to wear is a logical consequence of not placing dirty clothes in the hamper.
Consequences teach responsibility .
Kristin left her dirty clothes on the floor and never placed them in the dirty clothes bag as requested. Nagging, scolding, and threatening did no good. Kristin continued to leave her dirty clothes on the floor. Her mother decided to use logical consequences. She told Kristin, in a firm and friendly voice, that in the future she would wash only the clothes that were placed in the bag.