Toothbrush Problem: Revision history

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3 May 2009

  • curprev 17:1917:19, 3 May 2009 Koedinger talk contribs 424 bytes +424 New page: Apparently it was first said about theories in Psychology, but it applies as well in learning sciences: "Theories are like toothbrushes. Everyone has their own and no one wants to use anyo...