In many counties, students attend private “cram schools” for extra coaching in test-taking techiques. It's very important for students, because extra-school have a lot of advantages, but a lot of disadvantages. In my point of view, students who want to pass exams well need to have additional courses and cram schools can provide this. That's why, I can say that cram schools are really good way to improve your own skills and pass your exams. I will try to prove it by making a few arguments.