Friday, January 22, 2010

Two Minor Victories

This Tuesday, I came in without a presentation and was able to help students with their in-class work. They are reviewing for their final next week, and they had the entire class period to work on a worksheet, and it really should have taken them almost the entire time to finish it. As is often the case, many students simply ignored the worksheet, less so in the accelerated classes, but there were always students who just didn't care to do the work. Of those who did attempt the worksheet, they often moved very slowly because they were socializing instead of focusing on their work. I tried to nudge those students to focus, and it did help some of them keep on track, but there were still a lot of students who didn't get past the first four questions (out of maybe 30). I spent most of the time walking around the room and looking over shoulders to see if the students were doing the problems correctly, as well as answering questions when they arose.

Fourth hour is always particularly difficult for me, as my relationship with these students is still rather tense. There is a particular student, we'll call him J, who simply ignores me most of the time. Often he just walks around the room silently, but today he was sitting with a group of friends playing with a pair of dice. There was no money gambling going on, but he tried to make a bet with me: he said, "if I roll a 7, you have to do my worksheet." So I asked him what was in it for me if he didn't roll a 7, and he said that he would do it himself. While the odds were in my favor and I really wanted him to actually do the worksheet, I couldn't take the chance that I'd lose and do his classwork for him. So, I declined. He rolled anyway, and it wasn't a 7, and I told him that the odds were really in my favor. He didn't know why, so I explained how there are 36 possible outcomes with a roll of two dice, and 6 of them (which I wrote out on the whiteboard) would result in a 7. That would mean he has a 6/36 or 1 in 6 chance of winning. By this point, several students were interested and listening, so I talked a bit more about rolling other numbers (like a 7 or 11, which is used in craps) and how to calculate odds. Little did they know that they were actually learning about probability! Ha! Point: Steven.

There was one more incident of note on Tuesday, and that was in 6th hour. One of the students, I'll call R, who frequently asks for help, was struggling with getting started. I talked him through how to do the first problem, and then continued in my "rounds" walking around the classroom. When I was almost back to him, he crumpled up his paper and threw it in the recycling bin and said "I'm done." I went and got it, smoothed it out, and said "no, you're not." It turns out that he was on the right track, he had just made an error by confusing multiplication and addition. I made sure that he knew what to do, and for the rest of the period, he actually did work quietly on his worksheet. He works very slowly, and he didn't come close to finishing, but I was still happy to see him working for the entire class period. Steven: 2 points, Class: (well, they win when I win, they just don't know it, so) 2 points.

Friday, January 8, 2010

Back-to-School Car Talk

This week, the first week back after the holiday break, I've had the opportunity to spend three full days in the classroom. Ms. Tran is out of town for the week, so I filled in for her on Monday, Tuesday, and Friday. She left worksheets for the students to work on each day, but I wanted to also bring in a technology discussion for the geometry classes. So, I prepared a talk about "the future of cars", as I thought it was appropriate to our location near Detroit, the recent big changes in the auto industry, and the fact that it's now 2010 and all of my friends back home were asking me on New Years where their flying cars are.

I started by discussing hybrid cars and their benefits and how they work, then moved on to electric cars. With that, we briefly discussed where the electrical energy actually comes from, realizing that most of it comes from fossil fuels anyway and thus it isn't all that much "cleaner" than conventional gasoline cars. I then went on and showed them the UM solar car and talked about the interdisciplinary project and the 2500 mile competition. Many students commented on the safety of this car, which is a huge drawback and reason why we don't see things like that on the road - so I compared the solar car to a Ford Taurus just to show some of the important differences that make a Taurus much more practical than the UM solar car. I ended with a slide each on fuel cells and flying cars - I had found a new article discussing the US military's recent interest in flying cars, so we talked about the benefits and practicalities of the concept of flying cars. This was a rather long discussion, so I split it across Monday and Tuesday.

Second, third, and sixth hours all did very well with this discussion, and they were respectful and listening for almost the entire time. Fourth hour, however, had problems. I had even prefaced it on Monday by asking them whether they would rather have a discussion on cars or just start the classwork, and the consensus seemed to be that they wanted to hear the talk. Since I gave them the option, I figured that they would be respectful of me, but that just wasn't the case, and there were several conversations going throughout the class. I tried to ignore them and I tried stopping and giving "the look" until they stopped, but as soon I started talking again it was like I opened a floodgate to talking again. So, after this happened a couple of times, I just stopped. I said, "Okay, I can't do this. You can work on the classwork for the rest of the hour." After some initial protests, it actually seemed to suit all but one of the students fine (although several of the students didn't even touch the worksheet and just socialized for the entire class period). I didn't even try to resume the discussion with this class on Tuesday, and I'm not sure that I want to even try with this class in the future. They have always given me a hard time, and with all of the different approaches I've tried, I just can't find a way to get through to them. Perhaps my efforts will be more efficiently spent just helping these students with classwork and homework.

On Friday I didn't have a talk prepared, so I gave them the hour to work on their classwork, while I walked around and answered questions. I asked at the beginning of 2nd hour whether they thought the car talk from Monday and Tuesday was interesting. Only two people responded - one with a quick "no" and another with a "somewhat." This surprised me, because they seemed interested and almost all of them paid attention for the two twenty-minute-ish sessions. So I asked them what they'd like to hear about in the future, and the only response I got was "bombs" (which I do plan to talk about, as I did research on explosives as an undergrad). Sixth hour had several people say that it was interesting, but still at least one said "no." They gave me a couple of suggestions, and I'll try to address their interests in the future, but I'm realizing that I can't please everyone simultaneously (and there are some people that it seems like I can't please at all!).