Female teacher walking in classroom and talking to immigrant students as they taking test during lesson in language school
Teacher distributing papers to students in a classroom before an exam
Teacher pouring chemical into test tube with his student in classroom .
Teacher pouring chemical into test tube with his student in classroom .
Teacher pouring chemical into test tube with his student in classroom .
Teacher pouring chemical into test tube with his student in classroom .
private lesson teacher checking the student's questions, studying with the student taking private lessons, teacher and student
private lesson teacher checking the student's questions, studying with the student taking private lessons, teacher and student
School teacher and a group of elementary students working with a laptop and then taking a selfie together. Teacher with pupils watching laptop at indoors, slow motion