2Nohara,D.A Comparison of the National Assessment of Educational Progress(NAEP). the Third Internationa) Mathematics and Science Study Repeat (TIMSS-R) ,and the Programme for International Student Assessment (PISA)[].NECS Working Paper No.2001
3Schmidt, W. H.,McKnight, C. C.,Valverde, G. A.,Houang, R. T,& Wiley,D. E.Many Visions,Many Aims:A Cross-National Investigation of Curricular Intentions in School Mathematics[]..1997
