Instruction and study Music 2 Classroom management 1 Classrooms 1 Dissenters 1 Dissertations, Academic (Ph.D) 1 Education 1 Handicapped students 1 Historians of philosophy 1 Leadership 1 Music in education 1 Music in universities and colleges 1 Opposition (Political science) 1 Political activity 1 Politicians 1 School environment 1 Secondary school 1 Teaching 1 Thesis (Ph.D)-Education 1