classes:  lecturer. If you take a break from teaching, you should notify the class leader directly, your class is far away from school, you have to wait for the whole day without seeing you in class at that time to know that you are off.  curriculum. If you take a break from teaching, you should notify the class leader directly, your class is far away from school, you have to wait for the whole day without seeing you in class at that time to know that you are off.  facility. If you take a break from teaching, you should notify the class leader directly, your class is far away from school, you have to wait for the whole day without seeing you in class at that time to know that you are off.  general. If you take a break from teaching, you should notify the class leader directly, your class is far away from school, you have to wait for the whole day without seeing you in class at that time to know that you are off.