Perpendicular Vectors
Assignment: reconstruct what was going through the student’s mind as she solved this problem and, apparently, answered the problem with confidence. This mistake has been brought to you by Kate Nowak,...
View ArticlePerpendicular(?) Vectors
What’s the mistake? Why did the student make this mistake, in particular? Thanks again to the tweeting and blogging Kate Nowak for this submission.
View ArticleMistaken algorithms, cognitive load, and mysterious association
These mistakes are mine. I was tasked with checking the associative property with matrix multiplication, i.e. checking that (AB)C = A(BC). This was my first attempt. See the problem? By my...
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