[viraptor]

> They don’t explain very much

That's not really the case. Each separate step of each lesson is explained and practiced many times. Repeated failures across multiple students are noticed and explanations reworked. If it's not enough, you can report your issues. And there are MA communities to check with if you really get stuck for some random reason.

[zelos]

The explanations are very limited compared to actual maths lessons, though: in my experience they were very often something like "it turns out that the formula for this is...".

[mlyle]

IMO it's scaffolded and explained a bit more than an average mathematics lesson, though teachers vary a lot.

There's a whole lot of "here's the formula" and not so much "here's the derivation" in most classrooms.

The math classes that I taught: I tried to do a lot more of the why, either rigorously or using proof by gesticulation. But there were still absolutely times that I just handed something over and was like "do this, for now."

[mtts]

I’m currently doing the Calculus I course and while there are explanations interspersed throughout the problems, these mostly seem to be the bare minimum you need to work the problems. When I compare it to the calculus textbook I keep alongside it (Stewart’s “Calculus Early Transcendentals”) it barely seems enough.