TY - BOOK ED - Massachusetts. TI - A course of study in mathematics for the junior high school grades: a preliminary report ... Payson Smith, commissioner of education .. T2 - Bulletin of the Department of education AV - L160 .B17 1926, no. 6 PY - 1926///] CY - [Boston KW - Mathematics KW - Study and teaching (Secondary) N1 - Cover-title; At head of title: The commonwealth of Massachusetts; Bibliography: p. 31-32 ER -