TY - BOOK AU - Wagner, Sigrid. AU - Kieran,Carolyn ED - National Council of Teachers of Mathematics. TI - Research issues in the learning and teaching of algebra: Research agenda for mathematics education SN - 0873532562 (set) U1 - 512.92 WAG PY - 1989/// CY - Reston, Va. PB - National Council of Teachers of Mathematics KW - Álgebra KW - Estudio y enseñanza KW - Congresos. KW - Educación - KW - Investigación KW - Congresos N1 - Include references ER -