Pupils' mathematical performance in grades 3 and 6. : a longitudinal study
Petterson, Astrid
Pupils' mathematical performance in grades 3 and 6. : a longitudinal study - 439-450 - 22, No. 5, 1991
Junio 1992 = EDUCATIONAL STUDIES IN MATHEMATICS
DESTREZAS MATEMATICAS ESTUDIO LONGITUDINAL PROTOCOLO DE ANALISIS REALIZACION MATEMATICA RESOLUCION DE PROBLEMAS
Pupils' mathematical performance in grades 3 and 6. : a longitudinal study - 439-450 - 22, No. 5, 1991
Junio 1992 = EDUCATIONAL STUDIES IN MATHEMATICS
DESTREZAS MATEMATICAS ESTUDIO LONGITUDINAL PROTOCOLO DE ANALISIS REALIZACION MATEMATICA RESOLUCION DE PROBLEMAS