Brief summary of the section ~1 paragraph of about 5-10 sentences per section feel free to write more if that will help you Include motivations for the given problem, as appropriate For algorithms, brief sketch of algorithm, intuition, and implementation Include runtime for algorithms Questions you have about motivation/solution/proofs/analysis Discuss anything that makes more sense after reading it again, after it was presented in class (or vice versa) Anything that you want to remember, anything that will help you Say something about how readable/interesting the section was on scale of 1 to 10