Arithmetic Teacher (1978-1979) Vol. 26, No. 6

  • Arithmetic Teacher (1978-1979) Vol. 26, No. 6

    +ttt fff Arithmcztic ~ .. achczr Volume 26 I ..... ~eb~~:;y 61979 Mathematics is something learned from other people and with other people. And it's dolle with other people. We at Open Court kept this in mind when we developed a new elementary mathematics program: Real Math. We wanted the best authors in the right fiel