TY - BOOK AU - Grouws,Douglas A. ED - National Council of Teachers of Mathematics (Estados Unidos). TI - Handbook of research on mathematics teaching and learning SN - 0029223814 U1 - 510.71 PY - 1992/// CY - New York, NY. PB - Macmillan Library Reference KW - Matemáticas KW - Enseñanza KW - Investigaciones N1 - ´A project of the National Council of Teachers of Mathematics.´ ER -