Traditional teaching has no additional description in addition to the books, students do not understand and so much homework and make students want to work late at night during the close examination of students.
Traditional teaching no more than the book allows students to understand and to much homework and the students have to work until late in the close examination of the student.
Teaching the same no more description in the book makes students understand except command and home and make the students have to work late in the examination of the students.