The slight differences in the hemispheres give us a sense of why two different processing modes may have arisen. But be wary of the idea that some people are “left-brain” or “right-brain” dominant—research indicates that is simply not true.17 Instead it is clear that both hemispheres are involved in focused as well as diffuse modes of thinking. To learn about and be creative in math and science, we need to strengthen and use both the focused and diffuse modes.
