Dear Professor Whitman,
Last plex issues-using simple PPTs. This makes your lessons both interesting and memorable. However, I do feel that you should provide us with more handouts, as I often don't have time to take down all the important points. I would also like to be involved in more class discussions, as I find that this method could deepen my understanding of the subject.
I'd like to thank you for your attention given to us. I look forward to your next lecture.
Yours sincerely,
Li Ming