Okay, back to science! I'm doing a couple of little surface tension experiments with the 9th graders today. The first one is a simple demonstration. Fill a glass with water all the way to the top, and then gently drop in marbles until the water level is above the edge of the glass. What's holding the water in that dome shape and keeping it from falling over the edge is surface tension.
The second one is more fun for the kids. We've got a little tray with about an inch of water, and a small fleet of cardboard boats (which are really just pentagons with a little rectangle cut out of the back). A drop of soap in that cut-out slit propels them forward. Zoom!
We only have about 10 boats for 25 kids, so we pick them randomly. They've got a little box filled with wooden ice cream spoons (like popsicle sticks) with their names on them, and we draw out one at a time. Some of them miss the slot and then the boat can no longer move because the surface tension is equally decreased on all sides of the boat. We explain why you only get one chance, and they seem to understand.
Srinivas, one of the computer teachers, comes in a little late to observe. He's young - he's 19 and still doing his Bachelors degree - and enthusiastic. So when one of the students misses the slot, he tries adding more soap, and the kids laugh and tell him it won't work because the soap has dispersed through the water. It looks like they really do understand. Cool.
Showing posts with label class. Show all posts
Showing posts with label class. Show all posts
Friday, July 9, 2010
Tuesday, July 6, 2010
Day 2 - Classes
Apparently there's also one English teaching spot that's vacant. For that period, either another teacher takes over in their free period, or the kids just sit there. After lunch, Devender sir (as you would call a teacher), the high school in-charge, throws me and my mom into a classroom. No preparation, just "go talk to them." Ummmm...okay...
It takes me until my third class (after my mom has left) to realize that I don't really have to teach them English right now. I just have to talk to them. At any rate, I'm not supposed to be teaching English as part of my practice, so I won't count it as part of my practice. I've spent plenty of time preparing, creating, and testing these experiments, so my total number of hours will pass muster even if I spend some time on English. Regardless, I won't really be the one teaching English. The headmaster has actually asked my mom if she would like to stay and teach the 10th graders. There are two reasons for this.
For now though, they are much more enthusiastic in Telugu. And after all, I'm here for science, not English. I need to have them understand me - which is difficult enough without a teacher around to translate since all their science terms are in Telugu. If I can speak in Telugu, they can at the very least understand the context of my sentence and figure out what I'm saying about the science.
It takes me until my third class (after my mom has left) to realize that I don't really have to teach them English right now. I just have to talk to them. At any rate, I'm not supposed to be teaching English as part of my practice, so I won't count it as part of my practice. I've spent plenty of time preparing, creating, and testing these experiments, so my total number of hours will pass muster even if I spend some time on English. Regardless, I won't really be the one teaching English. The headmaster has actually asked my mom if she would like to stay and teach the 10th graders. There are two reasons for this.
- These kids have to pass their 10th grade board exams at the end of the year.
- If they want to go to junior college/intermediate (11th and 12th), they'll be going straight from a school where all the subjects are taught in Telugu to one where they are taught in English. That's a hell of a jump considering their current English level.
For now though, they are much more enthusiastic in Telugu. And after all, I'm here for science, not English. I need to have them understand me - which is difficult enough without a teacher around to translate since all their science terms are in Telugu. If I can speak in Telugu, they can at the very least understand the context of my sentence and figure out what I'm saying about the science.
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