Along with others I learned a great deal about what makes a PowerPoint presentation effective: not too many words, not distracting images; but stimulating technology and good visual design.
May I also say that this class has been very productive and I thank the students for that.
Oh, by the way, I read all the blogs today, a day with more sunshine than rain, a day with some time in the yard, a day that felt like a good one. Thank you.