I disagree with your statement. I think that you underestimate 11th grade coursework and definitely college level coursework. By 11th grade most students have long since begun pairing mathematics with science and by then formulas are a common aspect to scientific experiments. As lovely as your metaphors are, they just don’t hold up to the large concepts you are purporting and definitely don’t act as credible enough evidence to sway me from a traditional course for my home-schooled children. As of now this Universal Model seems more likely to stunt my children’s education by teaching them materials that may hinder them in college prep (especially considering how much of this goes against what will be asked on the ACT and SAT.)