Thursday, March 22, 2018
When I agreed to cover this chemistry class for a week, I did not know I would have a cold relapse. And because I knew the chemistry teacher had specifically been looking for someone who knew enough chemistry to keep the class going, I didn't want to call out that first morning. I figured I could limp through the day...
I was feeling better. I had rested the whole weekend, and I called out on Monday (bailing on day three of a three day assignment) so I had a whole three days of rest. But I wasn't quite at 100% yet. (If it had been a one day assignment, I probably would have cancelled.)
I blame the cold. That's all I'm saying.
First period was AP chemistry. The first day I covered, they had a test review. The second day, they had a test. I didn't have to attempt to "teach" them until the third day. I had plenty of time to prepare.
But did I? Of course not. I got through my day. Then after getting home, I ate dinner and pretty much immediately went to bed. (You may have noticed I was absent from blog commenting until Wednesday.)
I figured I could wing it. The teacher left his Powerpoints for the lesson. I scanned through it. I could present that.
Only, I couldn't. The chapter was on electrochemistry. And it started with redox reactions. I never really learned redox reactions. Which became apparent as we went through the lesson.
I read the slides. I paused so they could work through which element got which charge. Which was oxidation and which was reduction. I explained how the "battery" needed a salt bridge to keep the reaction going. I explained that electrons would flow through the wire...
They had questions. I managed to pull up a prior slide that showed oxidation/reduction and hoped that helped answer the question...
Yeah, the kiddos saw right through me. They knew I had no idea what I was talking about.
On the bright side, they are AP kids. They're used to studying. They can figure things out for themselves. And they had the teacher's notes.
At least, that's what I'm telling myself.
(The regular chemistry classes weren't as big a deal. I did actually remember enough of those sections to give those lessons.)