This document provides an introduction to learning theories by defining learning and outlining some first principles. It discusses what learning is as both a process and a product. As a process, learning involves individuals, others, and environments over time. As a product, learning results in ideas, behaviors, skills, attitudes and values. The document then discusses how our understanding of learning has evolved historically from thinkers like Plato, Aristotle and Locke. It notes that understanding learning theory is important for educators as it influences their approach to education, specifically their beliefs about knowledge, learning, and instructional practices.