High school students Dissertations, Academic (Ph.D) 1 English language 1 English language--Study and teaching (Secondary) 1 Language acquisition 1 Language learning 1 Language learning(Secondary) 1 Learning--Study and teaching 1 Mathematics--Study and teaching (Early childhood) 1 Physics--Study and teaching (Secondary) 1 Pupil-institution relationships 1 Social conditions 1 Student psychology 1 Thesis (Ph.D)-Education 1