The last time I got a C in a math class was freshman year in geometry, so this is unacceptable for me. I've failed a couple tests, but I studied and knew how to do 90% of the problems. I don't understand how I can know the material and do bad on the tests. And of course this has to happen in my junior year, the most important year for grades.
Get a whiteboard and markers and do practice problems from the book on the whiteboard. It's a good way to save paper and it's really easy to fix mistakes. This is how I ended up getting an A in Pre-Cal last year so I think it works really well. It worked best when we were doing trig proofs.
