The professor was able to condense a massive amount of information in a series of short lectures over a relatively brief period of nine weeks. He tried to keep it as concise and "non-mathematical" as possible with most of the information being descriptive and graphical. Equations and small proofs were included but the course did not require you to do any extensive mathematical exercises or derivations. Although, one could if they pleased go to the university website and get the problem sets from there or alternatively purchase one of the proposed textbooks and solve the problems from the relevant chapters. All in all a great course and an excellent explainer (Prof. Djorgovski). Highly recommended if you have an interest in modern cosmology and galactic evolution.