2. stays have ponder over a space. After the teacher reveals study material to the student, should stay to the student have ponder over a space. Like teacher education 8 can divide into 7 with 1, 7 with 1 synthesis 8 hind, let him student explore 8 how can you still divide? A few with a few synthesis 8? The student had own exploration, own research, with respect to can closer to learning knowledge to have understanding, improve study quality thereby. Main body position of the student also got be reflectinged adequately.