Professor of Astrophysics at the University of Oslo. I have a passion for teaching maths, physics and chemistry to students of all ages. My courses are structured in a way that makes it easy for you to learn. We start by explaining the theory, so you get a solid understanding of the basics. Then we move on to exercises that help you practise what you've learnt. We start with simple tasks that are easy to understand, and then gradually move on to more complex tasks and previous years' exams. This ensures that you get a solid understanding of the subject and that you are well prepared for the exam.