NCTM's standards : A rallying flag for mathematics teachers
Romberg, Thomas A.
NCTM's standards : A rallying flag for mathematics teachers - 36-41 - 50, No. 5, 1992
Junio 1993 = EDUCATIONAL LEADERSHIP
ASOCIACIONES DE PROFESIONISTAS CAMBIO EDUCATIVO EDUCACION MATEMATICA EVALUACION DEL ESTUDIANTE NORMAS ACADEMICAS
NCTM's standards : A rallying flag for mathematics teachers - 36-41 - 50, No. 5, 1992
Junio 1993 = EDUCATIONAL LEADERSHIP
ASOCIACIONES DE PROFESIONISTAS CAMBIO EDUCATIVO EDUCACION MATEMATICA EVALUACION DEL ESTUDIANTE NORMAS ACADEMICAS