The document discusses different types of reinforcement techniques used to encourage or discourage certain behaviors in children. Positive reinforcement involves providing a reward after a desired behavior, like giving a boy $5 for good grades. Negative reinforcement takes away an undesirable stimulus following an unwanted behavior, like parents removing screaming child's green beans. Punishment imposes an unpleasant consequence after an undesirable act, like washing a child's mouth out with soap for lying. Time-out uses removal of attention or privileges to reduce an undesired behavior occurring again, such as a mother taking away a toy when kids fight over it.