Étude et enseignement History 15 Sciences Study and teaching 14 Science 13 Histoire 9 Nature 4 SOCIAL SCIENCE 4 Technologie 4 Technology 4 Aspect social 3 Effect of human beings on 3 Environmental sciences 3 Human Geography 3 Human ecology 3 Influence sur la nature 3 Interdisciplinary approach in education 3 SCIENCE 3 Sciences de l'environnement 3 Social aspects 3 Argumentatie 2 Êtres humains 2 Geography 2 Géographie 2 Interdisciplinarité en éducation 2 Journalism 2 Journalisme 2 Knowledge, Sociology of 2 Learning and scholarship 2 Literaire structuur 2