Study and teaching 470 English language 240 Foreign speakers 139 Language and languages 100 Study and teaching (Elementary) 78 Teaching 78 Study and teaching (Secondary) 62 Education 58 Study and teaching (Higher) 56 Training of 45 Science 44 Mathematics 41 Second language acquisition 36 Effective teaching 30 College teaching 26 Composition and exercises 25 Philosophy 25 Teachers 23 Grammar 22 Research 22 Spoken English 21 Language arts 19 Literature 19 Problems, exercises, etc 19 Study and teaching (Primary) 19 Learning, Psychology of 18 Classroom management 16 English teachers 16 History 16 Activity programs 15