Brief summary of the section
Include motivations for the given problem, as appropriate
For algorithms, brief sketch of algorithm, intuition, and implementation
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