Ah, ok, I was attempting a different thought. "Teaching the tapestry" seems to require atypically few misconceptions and high degree of insight. But chemistr

Ah, ok, I was attempting a different thought. "Teaching the tapestry" seems to require atypically few misconceptions and high degree of insight. But chemistry content for example, is so bad, that teachers are steeped in misconceptions and lack insight. So not only is there, as you say, inertia, but we seemingly lack both content and staffing at present to pull off a tapestry approach. Maybe. There are bits of scattered evidence that with really good content, you can address both students and their teachers at the same time. Maybe...