RT Journal DB /z-wcorg/ DS http://worldcat.org ID 802640104 LA English T1 Mathematics teacher. A1 National Council of Teachers of Mathematics (Estats Units d'Amè€rica), 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.) YR 1908 SN 0025-5769 JF Mathematics teacher.