about 15 class hours per week;<br/>4 exam weeks in a semester (3 days no classes); <br/>No classes during the week of College/high school entrance examination <br/>(Almost work only half month in June);<br/>1 office hour per day (mainly preparing or sorting out teaching plans and lesson plans);<br/>

US only, around 15 teaching hours per week, teach science subjects, such as physics, chemistry, biology, and economics, etc. )