Vergleich der mathematischen Fähigkeiten bei SchülerInnen der 5. und 8. Klass...
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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...
诸多儿童与青少年在求学期间会在数学学科上中途辍学——这类群体往往具备相对优异的智力水平，且在……中面临的困难相对较低
