The more and more research I do, the more and more I realize that play is the best way for kids to develop and learn in the early stages. So in that sense, it really is easy to teach kids stuff. I'm not going to lie, there was a strong sense of pride that my first born was a strong reader at the age of three.
Despite the title of this category of articles, this isn't going to be all about basic psych theories. We will be occasionally referencing some of the key players in developmental psychology. People like Freud, Erikson, Maslow, and Piaget have laid the important groundwork for our understanding of how children develop.