Does anyone have a study guide for C810?

I’ve asked my teacher twice now for external sources for studying and he just says everything I need is in the course material. But I’ve read it, and I feel like I understand it. But there’s something in the OA I’m missing and I’m uncertain of what, so I was hoping to do a study guide as usual when I fail exams. Just wondering if anyone has had a teacher that provided them with one.