Sara Miller gave a superbly delivered lecture on truth tables for an Arts and Letters logic course. The only comment following this lecture was that she had excellent boardwork. However, Professor Diller posed the question: What should you do if you find that, when addressing questions to the class in the course of your lecture, it is always the same student who answers? Matt Rissler suggested you could speak to the student outside of class, and ask her/him to wait a few moments before responding to give other students a chance to jump in; but Prof. Diller said he had once tried this, and that the student had slept through the whole rest of the semester. Does anyone else have an idea about what one could do?
Next, Tom Edgar gave us a fine introduction to Series and Partial Sums, including the proof of convergence of a geometric series. Sara commented that she thought it was particularly good the way he highlighted the sequence formed by the partial sums (acutally circling the column S1, S2, ... , Sn on the board). He also spelled out the main theme of the lecture more than once to ensure students were following him.
(reported by Bonnie Smith)