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Showing posts with label Triangles. Show all posts
Showing posts with label Triangles. Show all posts
Monday, August 6, 2018

Golden Triangles

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Megan Lonsdale asked on Twitter about some mathart ideas to decorate stairwell panels and fuel a neat first week for her learners. Sam Shah...
Sunday, December 22, 2013

Activate Prompt

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Looking at the blog it looks like I retired from teaching! Disappointing oreo lesson and I'm out. I think this has been my most extended...
1 comment:
Wednesday, May 4, 2011

Triangle Mosaic

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Holy cow, have I been busy.  Sorry for the lack of new posts.  What makes it worse is that I have had several guest posts to get up that stu...
Friday, December 3, 2010

Triangle Puzzle

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Have you ever had a nice problem that you just thought about at odd moments?  Boring meeting, stuck waiting somewhere, few surprise extra mi...
3 comments:
Wednesday, October 13, 2010

Practice Problems

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I'm trying to shift towards standards based grading (SBG) this semester for the content grade in my geometry class, and so I'm payin...
Thursday, February 4, 2010

Quick Triangle Sum & Pythagorean Proof

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Just a quick, pretty unoriginal sketch to help secondary/tertiary students think through the justification for the sum of the angles in a tr...
Sunday, December 13, 2009

Triangle Detective

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This game is a variation of a variation of a game. There's a terrific game called Polygon Capture which originally came from a Mathemat...
Tuesday, October 13, 2009

GeoGebra: Triangle Tuning

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What can we deduce from the side lengths of a triangle ? This is a preservice teacher activity, easily adaptable to middle or high school us...
1 comment: