hot for teaching

Sometimes you just have a good lecture... the audience is listening, you're well-slept, you are getting the feedback you need to know that the class is following you. You even get questions from beyond the first row! Today, I gave a guest lecture on bacterial horizontal gene transfer, we were all collectively on, and it was an energizing experience.

It helps that I love this material -- nothing like covering conjugation, transduction and transformation for tossing in historical anecdotes, like how we first measured bacterial genomes in minutes. If that doesn't help them remember that the most commonly transferred bacterial genes due to an integrated conjugative plasmid are the ones closest to the site of integration... My asides weren't just historical, since I know a number of active researchers in the field. Amid all the talk of what good is it for large state schools to be centers of cutting-edge research, this is an example of the trickling down of research into the classroom. I was able to mention Rosie Redfield's papers, and their memorable titles (for instance, "is sex with dead cells ever better than no sex at all?"), and I was able to talk about the debate over why antibiotic resistance genes tend to be plasmid-borne, but mammalian toxin genes are usually phage-borne.

Of course, part of my excitement is because I haven't been teaching this semester, so these guest lectures are reminding me of the best aspects of lecturing -- without all the grading, emails about dead grandmothers, etc. But I'm spending the day smiling about the undergraduate student body (which doesn't always happen), and remembering that this is one of the reasons I decided against pursuing a career in industry. That, and I tried working in industry, and it was a soul-sucking experience (my PI agreed and he quit shortly after I left). But the teaching, that was part of the decision too.