This booklet is intended to help teachers, aides, and parents of preschool-age children to establish desirable behaviors and eliminate inappropriate behaviors in their children. Following a list of definitions, the booklet discusses how to discriminate between different types of behavior and how to choose the appropriate level of response. Major steps in changing behavior are discussed, including raising the child's self-esteem, establishing rules, getting a child's attention, using warnings and corrective feedback, and making consequences clear. A team approach to positive behavior reinforcement is included for teachers and assistants who need to present a united front. Also included is a list of suggestions for promoting positive behavior, a discussion of extrinsic and intrinsic reinforcers; a list of alternatives to lashing out at misbehaving children, and a list of characteristics common to children with attention deficit disorder with and without hyperactivity. Attached are a child development screening form, child-family referral form, and a list of 101 ways to praise a child. (WP)