an aid for student tutors, paraprofessionals, and teacher assistants Kepner, Henry S. creator Johnson, David R. joint author. National Council of Teachers of Mathematics text bibliography vau Reston, Va National Council of Teachers of Mathematics c1977 1977 monographic eng

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iii, 28 p. 23 cm. by Henry S. Kepner, Jr. and David R. Johnson. Bibliography: p. 25-28. Mathematics Study and teaching QA11 .K49 510/.7/1 0873530306 77006426 770418 20160527195747.0 151345