Lateralization of brain function means that certain tasks and functions are done in either the right or left side of the brain. For example, language might be seen as “left-side” or “right-side” depending on which side of the brain does it better. The left side of the brain is usually thought to be more organized, logical, and analytical, so it typically handles tasks like reading, math, and problem-solving. On the other hand, the right side of the brain is usually more artistic and creative, so it usually handles tasks like art, music, and daydreaming.