Messung der mathematischen Kenntnisse bei SchülerInnen der 5. und 8. Klasse m...

Many children and young people become school dropouts in mathematics during their school years - often with relatively good intelligence and relatively low difficulties in the...诸多儿童及青少年在就学阶段出现数学学科辍学情况——这类人群通常拥有相对优异的智力水平，且在……中遇到的困难相对较低