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13 Jun 2006 - 00:08
news from nowhere part 13Ed is in the basement teaching Chapter 10 Area and Volume Formulas to Christopher. ("In Chapter 10 students learn to find the area and the volume of many figures by using formulas. Students also learn to recognize the relationship among different figures." [ed.: I just bet they do!]) My job is to guess what item or items Ms. K will put on the test that the kids have never seen before and have no idea how to do. I'm guessing she'll have a 3-dimensional teardrop shape, or, maybe, a 3-dimensional mailbox-shaped figure. But if she does, will she ask for surface area or volume? any guesses from the field? I'm starting a pool. or... She could also put on some killer nets. That would be death. So...I wonder if I should make him memorize the 11 nets that make a cube? ![]() announcing phase 4 math pool phase 4 math entries -- CatherineJohnson - 13 Jun 2006 Back to main page. CommentsAfter entering a comment, users can login anonymously as KtmGuest (password: guest) when prompted.Please consider registering as a regular user. Look here for syntax help. I can't see how to do a 3D teardrop shape without calculus, so I'm going to put my money on the mailbox shape. And she will ask for both surface area and volume. -- GoogleMaster - 13 Jun 2006 well, the figure I was thinking of isn't exactly a teardrop. It's an ice cream cone, only it's skewed, kind of. Saxon Algebra 1 has them. -- CatherineJohnson - 13 Jun 2006 We're doing mailboxes tomorrow. I also have to make sure Ed taught him spheres. -- CatherineJohnson - 13 Jun 2006 plus we better practice how to spell sphere -- CatherineJohnson - 13 Jun 2006 ![]() -- CatherineJohnson - 13 Jun 2006 My money's on a figure with measurements that couldn's exist in 3-space. Oh, and it won't represent anything with a real-world analog, either. (I know, just too obvious. Sometimes, though, you have to shoot fish in a barrel. Mean little suckers, those fish. -- DougSundseth - 13 Jun 2006 Volume of the Klein Bottle! -- RudbeckiaHirta - 13 Jun 2006 Are you kidding? Is he really supposed to memorize those 11 little shapes and how they form a cube? -- CarolynJohnston - 13 Jun 2006 who knows? That's a joke - I have no idea what she'll put on the test I just know it will be something they've never done before & don't know how to do, related to area & volume formulas. (Nets are in the chapter, too.) -- CatherineJohnson - 13 Jun 2006 Carolyn, my thought exactly: Wotthehel does this have to do with anything? And Catherine, remember that those "nets" can be flipped or rotated, so you have to understand that (in the case of the 11th shape)...
-- OldGrouch - 13 Jun 2006
good god thanks, Old Grouch AND THAT WAS ON MATH FORUM! -- CatherineJohnson - 13 Jun 2006 Okay, I was having too much fun with The Gimp. Here's a second illustration, FWIW:
"Nets" with no symmetry have 8 possible arrangements (rotations and flips). Those with one axis of symmetry have 4*.
*assuming you don't track particular squares.
-- OldGrouch - 15 Jun 2006
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