#mtbos so I think I figured out that my Moodle class ... well, you just can't really sign up with your email. (Perhaps something's built into my site architecture for spam control.) But if you know somebody who wants to try a conceptual, little bit at a time, number sense based "course" https://resourceroom.net/class/ will get them there and I can sign them up :P NO cost or commitment... even figuring out how to get signing up to work is helpful.