Discovery Loved, Cause Hated

Andrew B. Watt, Apr 30, 2013
Commentary by Stephen Downes
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This is a great story - kids, trying to track down why their 3D printer is making errors, figuring out things like x-axis and number lines and the rest. "they can see the X-Axis, the Y-Axis, and the Z-axis.  How many of those plastic pixels wide is your coffee cup?  How many deep?  How thick are the walls? The handle? And Can that handle be supported by its own weight as the printer builds it?" As always, immersing yourself in the thing makes for much better learning than simply being told the abstract principles of the thing.

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