Search results for: Leffin, Walter W.

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  1. 1

    Going metric : guidelines for the mathematics teacher

    Authors: Leffin, Walter W.
    Published: National Council of Teachers of Mathematics, 1975
    Physical Description: 47 pages : illustrations ; 23 cm
    Book
  2. 2

    Going Metric : Guidelines for the Mathematics Teacher, Grades K-8

    Authors: Leffin, Walter W.
    Published: Distributed by ERIC Clearinghouse, 1975
    Physical Description: 51 pages
    Microfilm Book