For a brief diversion, take a look at Jason’s post on fundamentalist mathematics. (Hey, this is a blog, so I can take diversions. Besides, nobody is reading this blog anyway).
I have long been concerned that home schooled children were getting a poor education. If this is an example of how they teach mathematics, then the concerns are justified.
Somehow I am reminded of the saying “Those who cannot teach, teach teachers.” Here we seem to have somebody with a very poor understanding of mathematics who is teaching home schooling parents on how to teach.
Incidentally, Jason commentary is about right. But then Jason is a mathematician, so that is no surprise.