"fag i læseplan" . . "komparativ analyse" . . "geografi" . . . . "biologi" . . "uddannelse på primært niveau" . . "viden" . . "IEA" . . "TIMSS" . . "naturvidenskaber" . . "fysik" . . "kemi" . . "International Mathematics and Science Study (3 : 1997 : Boston)" . . . . . . . . . . . . "Cross-cultural studies"@en . "Cross-cultural studies" . . . . . . . . . . . . . "Science achievement in the primary school years IEA's third International Mathematics and Science Study (TIMSS)"@en . . . . . . . . . "IEA's third International Mathematics and Science Study (TIMSS)"@en . . "International Association for the Evaluation of Educational Achievement"@en . . . . . . . "Science achievement in the primary school years IEA's third international Mathematics and science study (TIMSS)"@en . . "Science achievement in the primary school years : IEA's third International Mathematics and Science Study (TIMSS)" . . . . . . . . . . . . . . . "Science achievement in the primary school years : IEA's third international Mathematics and science study (TIMSS)" . "Science achievement in the primary school years : IEA's Third International Mathematics and Science Study (TIMSS)" . . . . . . "undersøgelse" . . "international forskning" . . "færdighed" . . "præstation" . .