Study and teaching Education 40 Teaching 25 English language 10 Training of 9 Educational psychology 7 Teachers 6 Leadership 5 Philosophy 5 Science 5 Educational technology 4 Law 4 Peace 4 Psychology 4 Research 4 Thought and thinking 4 Vocational guidance 4 Commerce 3 Computer-assisted instruction 3 Creative thinking 3 Curricula 3 Curriculum planning 3 Economics 3 Education and state 3 Examinations, questions, etc 3 Intelligence service 3 Interactive multimedia 3 Learning, Psychology of 3 Military intelligence 3 Reading 3