Today we'll let a member of the class lead the discussion. It will be a good educational experience. (I stayed out too late last night and didn't have time to prepare a lecture.) The gist of what the author is saying is what's most important. (I don't understand the details either.) The test scores were generally good. (Some of you managed a 'C'.) Some of you could have done better. (Everyone failed.) It's been very rewarding to teach this class. (I hope they find someone else to teach it next year.)
