The versions of subjects in different places are seriously inconsistent, and the subjects can't take care of each other like the old textbooks, and the logic is strict.

There are many colorful pictures.

There are many colorful pictures in the textbook, and the chapters are messy and the serial number is unknown, so it is difficult to discuss the problem.

Achievement first

Without quality education, no matter how loud the slogan is, everything is still an achievement.

Teacher promotion system

Teacher promotion system seriously affects teachers' mood.