Today I had two experiences that reminded me that composers and theorists approach the teaching of music theory from different perspectives. I'm horribly generalizing in this statement, including the quite false assumption that composers and theorists are two separate sets. But there still is truth to it, especially when isolating all non-composing theorists from those who compose extensively. Composers look at music theory as a way to teach composition. Rules are taught as limits to engender creative control and artistic self-awareness. Theorists regard music theory as a means of explaining how music works. Rules are taught as norms of practice, so students can recognize when these norms are broken and when elegant solutions are produced to avoid breaking the norms*. So it is composition pedagogy vs. analysis pedagogy. And we are richer for both perspectives.
*I'm using this term just to annoy Norm Carey.