Today, we first started off by taking attendence. Then, we got started on the experiment. Our main question: "When a laser hits off the mirror, is angle A and B equivilent? We began to find out. Students experimented with a laser and mirror (most of which, were using a protractor too.) to see what happens when a laser bounces off a mirror/protracter, and to test their hypothesis. Of course the protractor was clear. I noticed a group of people were testing with the fish tank It appears as if when they put the mirror behind the fish tank, and point the laser to it, the laser kind of goes into an angle. If I draw a picture, you might have a better understanding of what I am talking about. It is what I saw.
People, though, were playing and being somewhat foolish with lasers and pointing them to the wall and ceiling. Now this may be off topic, but, when the laser hit the ceiling light, the light spread out. As in, the one point would show, but then a glow of light would with a clearer red (kind of like transparency, you could still see the ceiling light) than the one point. This only went for when the lights were turn off. Our subsitute said we should do at least three trials, which most groups did, and we gave a little time for the people who didn't do three trials. When we turned the lights on, people began to write up what they saw, and gave back all the lasers and mirrors.
Tables discussed their hypothesis together, which caused some heated discussions at some tables. Afterwards, we discussed as a whole class if the statement was true, that laser A and B were notequivilent. A couple of groups thought no, they are not equivilent. At the end, groups wrote up their conculsions in their own opinion, but help from their groups.
Fun fact: Did you know that the laser was invented in New Providence? I bet you didn't. Our morning substitute was just so awesome to let us on this fun fact.
CP
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