Mathematics Teacher (1976) Vol. 69, No. 2
Ndonal Council of Teecher8 of ............. Electronic Calculators-Friend or Foe of Instruction Eleanore MaclaiOf.UIU A Two-Square One-Square Puzzle: The Pythagorean Theorem Revisited }eale Ann Engle Extr...,eory Probability john F. LOGie A Relwlnt Celoulue Problem: Estimation of U. S. 011 Reserves }QCic Wer~ltmd tmd D
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