tag:blogger.com,1999:blog-28172905.post1443351152580698813..comments2024-03-03T17:53:46.947-05:00Comments on (x, why?): Let's Talk Geometry Regents(x, why?)http://www.blogger.com/profile/17499160002806879025noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-28172905.post-69769161377223186612013-06-24T13:27:37.087-04:002013-06-24T13:27:37.087-04:00As a fellow teacher, I have to disagree with your ...As a fellow teacher, I have to disagree with your take on question 24. SAS is in the curriculum. Copied directly from the Geometry Core Curriculum:<br />G.G.44 Establish similarity of triangles, using the following theorems: <br />AA, SAS, and SSSAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-28172905.post-63290186085804768782013-06-23T22:33:07.104-04:002013-06-23T22:33:07.104-04:00By the way, can we all agree that pretty much all ...By the way, can we all agree that pretty much all the locus of points questions -- ever -- are pretty silly?(x, why?)https://www.blogger.com/profile/17499160002806879025noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-10323917305673555892013-06-23T22:32:35.520-04:002013-06-23T22:32:35.520-04:00The two points is not the "work shown" a...The two points is not the "work shown" and never has been. You could make a case for explaining in the margins if you wrote something that wasn't a re-iteration of the question (like the equations of the line and where the lines intersected), but, frankly, drawing something would be more efficient. (x, why?)https://www.blogger.com/profile/17499160002806879025noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-79335271034500984082013-06-23T12:59:20.803-04:002013-06-23T12:59:20.803-04:00My response to that is that graphing the locus as ...My response to that is that graphing the locus as two points would be the work shown, and then putting the X's where the points are would be the answer. So, as long as a student shows 2 nice clear points as well as X's, they should get full credit. What might a student get if they did what I suggest and explained their rationale verbally in the margin?Anonymoushttps://www.blogger.com/profile/01534101789663126213noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-48504857892154941322013-06-21T08:01:03.275-04:002013-06-21T08:01:03.275-04:00Two X's without any supporting work showing ho...Two X's without any supporting work showing how you arrived at them is never worth full credit, regardless of the wording of the problem.(x, why?)https://www.blogger.com/profile/17499160002806879025noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-57154716575830545302013-06-20T23:28:53.445-04:002013-06-20T23:28:53.445-04:00True, yet the question is written as ONE locus wit...True, yet the question is written as ONE locus with 2 conditions. It is completely unfair to require the 2 separate conditions to be graphed separately. As written a completely correct response would be just the 2 points.RickJhttps://www.blogger.com/profile/10536125960843836333noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-20874686813112139602013-06-20T22:06:53.382-04:002013-06-20T22:06:53.382-04:00Wow. I didn't see the sample answers for quest...Wow. I didn't see the sample answers for question 33. When I wrote it I had two horizontal lines and two "X"s. I didn't bother drawing the vertical line. <br /><br />Since I didn't grade that question, I don't know what the standard is. The rubric is confusing. 2 points for both loci and the correct co-ordinates, 1 point for neither loci being graphed. There isn't anything stated about one locus graphed.(x, why?)https://www.blogger.com/profile/17499160002806879025noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-16967695780977560482013-06-20T21:10:42.091-04:002013-06-20T21:10:42.091-04:00As a fellow Geometry teacher, I had a problem with...As a fellow Geometry teacher, I had a problem with #33. The question asks for a SINGLE locus. Yes, a SINGLE locus. Read the question... "...graph the locus of points 4 units from the x-axis AND equidistant from the points..." Normally the question is worded .."graph the locus of points...and graph the locus of points..." If a kid did the locus satisfying BOTH conditions at the same time, namely only the 2 coordinates, they lost points. Yes, we did have students do this.RickJhttps://www.blogger.com/profile/10536125960843836333noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-50402168508689028002013-06-20T18:06:09.046-04:002013-06-20T18:06:09.046-04:00It is in the curriculum but not stressed. I usuall...It is in the curriculum but not stressed. I usually only teach the AA while doing proofs. I actually showed my students SAS and SSS to prove similarity on the last day of school, just in case. Many of them still forgot it though and chose AA,Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-28172905.post-32760429596427625722013-06-20T09:20:32.654-04:002013-06-20T09:20:32.654-04:00I teach developmental Geometry at a local (to me) ...I teach developmental Geometry at a local (to me) community college. SAS~ is in our curriculum. One Browhttps://www.blogger.com/profile/11938816242512563561noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-82838395454351688372013-06-19T22:30:22.205-04:002013-06-19T22:30:22.205-04:00I knew students who knew, but just weren't sur...I knew students who knew, but just weren't sure how to phrase it or what the correct reason would be, which shouldn't be too big of a problem for them. <br /><br />If they didn't realize this and stopped, then I hoped they at least got some other steps in to get at least half of the points.<br /><br />As for SAS, I've yet to speak to a teacher who has used it for anything other than congruency. I could see that this was the answer that they going for, but that doesn't mean that I have to like it.(x, why?)https://www.blogger.com/profile/17499160002806879025noreply@blogger.comtag:blogger.com,1999:blog-28172905.post-39079915098808357292013-06-19T20:10:39.760-04:002013-06-19T20:10:39.760-04:00My teacher did AA~ but also SAS~ and SSS~. We use...My teacher did AA~ but also SAS~ and SSS~. We used the last two to prove the first. I thought the test was fairly OK, but had to read questions carefully. My friends in 2 other schools also did 3 methods for similarity. One of my friends thought last proof was hard bc she forgot halves of equals are equal.Anonymousnoreply@blogger.com