DaveC426913's latest activity
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DaveC426913 replied to the thread Geometry: Similar Shapes.I've not encountered that notation. Where I come from, | means equal length. To-wit: AB and DC are parallel. AD and BC are of equal... -
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DaveC426913 replied to the thread Geometry: Similar Shapes.You mean >
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DaveC426913 replied to the thread I Question about a Square Light Clock."Speed" of what? That clock you've designed and constructed in your lab is currently moving relativistically (as observed by someone...
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I am really surprised that some seriously expect to take BE and CD as parallels and don't have any problems taking 12 and 3 being...
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DaveC426913 replied to the thread Geometry: Similar Shapes.Not to mention that the problem explicitly says there are two solutions. If the student finds one solution and stops there, they have...
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DaveC426913 replied to the thread Geometry: Similar Shapes.My smack is gobbed that we here are (apparently) not all unanimous in this view.
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DaveC426913 replied to the thread Geometry: Similar Shapes.Thank you. I would have thought this was plainly apparent to all.
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DaveC426913 replied to the thread Geometry: Similar Shapes.I am not actually sure what you are saying here. You're telling your students to draw a rough diagram. (Not sure how that's a problem.)...
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DaveC426913 replied to the thread Geometry: Similar Shapes.And I am taking the gist of your "deliberately misleading" criteria and applying to another case: By your logic, it seems to me, this...
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DaveC426913 replied to the thread Geometry: Similar Shapes.So, in this diagram, if AD and BC are not parallel, you would consider this "tricking" people, yes?
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DaveC426913 replied to the thread B A question about warp bubbles and navigation.Right. But for the purposes of this discussion, we really need to pick one of the two and stick with it. If you want to talk about Star...
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DaveC426913 replied to the thread B A question about warp bubbles and navigation.A warp bubble is science fiction. It behaves in whatever fashion makes the story work. If you want to talk about some less fantastical...
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DaveC426913 replied to the thread Geometry: Similar Shapes.How exactly is the problem "deliberately misleading"? Are you asserting that - that in a given geometric diagram, two lines that look...
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DaveC426913 replied to the thread Geometry: Similar Shapes.All the more reason why this kind of question needs to be taught. Or: "We found that understanding stress fractures in airplane...
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DaveC426913 replied to the thread Geometry: Similar Shapes.It's not a "trick question". Students are taught to not trust diagrams. An angle that looks about 90 degrees - is not 90 degrees...
