Summarizes the historical context for development of the Learner-Centered Psychological Principles (LCPs), discussing why LCPs and their practices are particularly important in the current educational reform era; offering implications for practice; noting how LCPs can contribute to a national framework for the systemic redesign of K-20 education; and suggesting that the learner centered framework provides validation for practices that achieve a balanced focus on both learning and learners. (SM)