In my research looking for someone to study with before I decided fully on your course, I came across a man by the name of Steve Rifkin. He teaches some geometry stuff and as I have been going into the 2nd lesson I am seeing some resemblances here of what he teaches. I was wondering if he has taken your course? Just curious.
RS
Teaching methods resemble...
Re: Teaching methods resemble...
I do not know Steve Rifkin and he does not appear in our database. There is always the possibility that he had access to the material through the small grey market or though some other route. The broad outlines of Drummond's multiple time period approach have subsequently appeared in much diluted form in several places. But we don't know Rifkin's work and so cannot comment.