One Point of View: Mental Computation and Computational Estimation—Their Time Has Come

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  • 1 Oakland Junior High School, Columbia, MO 65201
  • 2 University of Missouri—Columbia, Columbia, MO 65211

Changing curricula in mathematics is more difficult than moving an old graveyard in January. Nevertheless, cries for changing our mathematics programs are coming from many directions as ideas for a forward-looking, futuristic mathematics curriculum are offered. Although calls for specific curricular changes are varied, all seem to agree on one thing: mathematics programs must give significantly more attention to the development of skills in mental computation and estimation and much less attention to traditional written algorithms for computation.


Barbara J. Reys has an interest in mathematics education at all levels.

Robert E. Reys is involved in research and development in mathematics education.

The Arithmetic Teacher


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