excellent points. The differentiated instruction lauded today as necessary is a standard of the homeschool environment. Its also in the multi-age classroom. It's when you lump ever kid of the same age in a class and force them to study the exact same thing, even expect them to develop at a steady "average" rate, that you do them a disservice. Studies show that almost no kids develop at a straight line rate (eg. the average rate). Thus, every kid being held to the "average" standard is basically underserved. No surprise we fail to adequately engage students in school.