Although educators are expected to bring about functional changes in the brain-the organ of human learning -- they are given no formal training in the structure, function, or development of the brain in normal or atypically developing children. This book is organized around three conceptual themes: First, the interplay between nature (genetics) and nurture (experience and environment) is emphasized. Second, the functional systems of the brain are explained in terms of how they lead to reading, writing, and mathematics and the design of instruction. Third, research is presented not as a finished product, but as a step forward within the field of educational neuropsychology.