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