13 Rules That Expire

  • 13 Rules That Expire

    Karen S. Karp, Sarah B. Bush, and Barbara J. Dougherty
    Overgeneralizing commonly accepted practices, using imprecise vocabulary, and relying on tips and tricks that do not promote conceptual mathematical understanding can lead to misunderstanding later in students’ math careers. (The fraction error in no. 6 on p. 22 has been corrected.)

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