For eight years, since I began my research, my main concern has been to understand children and their world. The first step towards understanding how children think was taken in connection with my thesis, which I presented five years ago.This was a description of how children in the age group three to eight years conceive their own learning. The thesis was published in the same series as the present monograph and is entitled "The child's conception of learning." The main emphasis in this study was on developmental psychology. As I have worked as a preschool teacher myself, I am extremely...