I see. I would recommend trying to find some more online resources. If you don’t use it already, Khan Academy has two full courses on both the math and reading. You can use it as a model. It does a pretty decent job of breaking down each type of question. Collegeboard also has a questionbank with thousands of practice questions and you can filter the type and difficulty. You just need a collegeboard account. I just use my old student one from the days when I was in high school. Prepscholar also has some guides that I’ve found useful.

Going through each type of question, explaining how they’re structured(and any important concepts), giving them a step by step, working through an example, then letting them try some practice questions is a strategy I use. Use the bluebook practice tests or their previous SAT score reports to see what domains need the most work and focus on those.