classes: lecturer. lecturers often take a lot of breaks, teaching methods are not attractive that students can not focus on studying. curriculum. lecturers often take a lot of breaks, teaching methods are not attractive that students can not focus on studying. facility. lecturers often take a lot of breaks, teaching methods are not attractive that students can not focus on studying. general. lecturers often take a lot of breaks, teaching methods are not attractive that students can not focus on studying.