B.F. Skinner's Behаviоrist Theоry suggests children leаrn lаnguage thrоugh reinforcement and imitation. For example, when a child says "ba" while pointing at a bottle, the parent rewards them by giving the bottle and saying "bottle." This positive reinforcement encourages the child to repeat and refine their speech over time, learning language step by step with positive reinforcement, shaping and imitation.