Review all the audio clips and self tests in lectures 1-13.  Pick three in each category that need to be improved.  Explain why and how they need to be improved.  Pick the two best in each category and explain why they are the best.  Where would you suggest adding in audio clips?  Finally, write a sentence stating the most confusing part in the text, on the lecture notes or add an FAQ.   Email your answers to sfogler@umich.edu with a cc to byrnec@umich.edu .