The developmental-behavioral approach focuses on teaching children through positive reinforcement and breaking tasks down into step-by-step instructions. Key principles include that all children are teachable, knowledge comes from responsive learning environments that reinforce success, and behaviors are shaped through reinforcement of compatible actions and extinction of incompatible ones. Rules are kept specific, observable, positive, and have explicit consequences. Learning tasks are analyzed, taught step-by-step, and prompts are faded as mastery occurs. The amount and timing of reinforcement varies by individual.