新课程改革之后,学生减负和初中教学目标的冲突逐渐凸显出来,如何解决这两者的矛盾,应该考虑提高课堂教学的效率,既然这样,那么探究教学课堂的有效性十分必要。 After the new curriculum reform, the conflict between student burden reduction and junior high school teaching objective gradually becomes obvious. How to solve the contradiction between the two should be considered to improve the efficiency of classroom teaching. In that case, it is necessary to explore the validity of teaching classroom.