National Council of Teachers of Mathematics 2013 Annual Meeting and Exposition

Please note: The NCTM conference program is subject to change.

117- Measuring Length and Time in the Common Core, Grades K–1

Thursday, April 18, 2013: 11:00 AM-12:00 PM
709/711 (Convention Center)
Lead Speaker:
Constance Kamii

  • NCTM2013 (pdf).pdf (189.9 kB)

  • For measuring length, the Common Core requires that first graders be taught transitivity and the need for equal units. This teaching is unnecessary because Piaget reported in 1948 that, without any instruction, children demonstrate transitivity by grade 2 and unit iteration after grade 3. The Common Core also confuses measuring time with telling time.

    Presentation Format: PreK-2 Session
    Grade Band Audience: PreK to 2
    Attribute: Learn <-> Reflect strand presentation

    See more of: PreK-2 Session
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