RT Journal DB /z-wcorg/ DS http://worldcat.org ID 1131346507 LA English T1 The Mathematics teacher A1 National Council of Teachers of Mathematics., Association of Teachers of Mathematics in the Middle States and Maryland., Association of Mathematical Teachers in New England., PB National Council of Teachers of Mathematics PP [Reston, Va., etc.] YR 1908 SN 0025-5769 JF The Mathematics teacher