In this article we argue for the necessity of far-reaching change in school curricula and pedagogy. More particularly, we argue that developing students' understanding and engagement in the disciplines which make up the school curriculum requires an unearthing of the philosophical issues underlying science, mathematics, the arts, geography, history, and so on. This means that philosophical inquiry must be embedded in every curriculum area. While at first sight this task might appear unattainable, we go on to illustrate by means of detailed examples how the goal might be realized and point to theoretical and empirical evidence to support this contention. (Contains 18 notes.)