Not quite a full blown WCYDWT, but maybe slightly better than textbook examples. There are a few interesting questions here: Which squash bottle is not similar to the other two (one on the left)? What do they mean when they say that guitar is "half-sized" (volume is half)? How is cooking time of the turkeys worked out (scale factor squared or surface area)? More info about the maths of that last one here: http://mathnathan.com/2010/09/24/math-chef/
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Quick wins from Direct Instruction: Dimensions of Difficulty
This post was inspired by an episode of the Craig Barton podcast with Kris Boulton. Kris was acting as a salesman for Engelmann's Direct...
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There is a test that screens for some rare disease (only 1 in every million people is infected). It is 99% accurate (it gives the correct a...
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Here it is: Your browser does not support iframes. Here is the address for the pupils and to go fullscreen (recommended): http://gl...
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Skills Practiced: Spatial reasoning Fractions of shapes Multiplication of Fractions (Potentially) Pythagoras Material: Paper cut ...
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