Arithmetic Teacher (1978-1979) Vol. 26, No. 4

  • Arithmetic Teacher (1978-1979) Vol. 26, No. 4

    -.111101UII-26 JIIDndler .. Dircllmber 1978 r:taac:lc!r)' Dialogua Ed; tor's Note: The currency ofleners to the editor or a JOUrnal hke the Artthmmr Trarhtr os alw•>S a problem At the -cr) best. four monlh) "'II h.i .. eclapscd bct .... ccn the umc .... hen an aruclc tS pubhshed and the tome "hen a Jetter commentong on