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Apr 30, 2016 at 13:33 comment added JTP - Apologise to Monica @DavidButlerUofA - thanks for the clarification. I'll look at how I can re-word to pose as a question.
Apr 29, 2016 at 0:17 comment added DavidButlerUofA @JoeTaxpayer It is definitely related, but I think it has a much more specific mechanism that deserves discussion in its own right, that's all.
Apr 28, 2016 at 23:49 comment added anomaly A related question would be why, after a discussion of similar triangles, they can't immediately solve the man-and-flagpole-style problem.
Apr 28, 2016 at 23:38 comment added JTP - Apologise to Monica Thx David. I understand. I thought this was a subset of the 'example' issue, where the example is followed so closely, the very letters confuse students when moving to the next problem.
Apr 28, 2016 at 17:22 comment added DavidButlerUofA I think the particular issue of relying on the letters used deserves its own question!
Apr 27, 2016 at 19:29 history answered JTP - Apologise to Monica CC BY-SA 3.0