学生面临着沉重的作业负担,教师过多地使用题海战术,到处撒网,令学生的体力和精神压力增大,但教师疏于对学生进行思路点拨,导致学生做题的效果并不明显,最后引起学生对数学的无力感,甚至产生了负面情绪,因此“减负增效”就应运而生,它为学生学习提供了一种新的方式。 Students are faced with a heavy burden of homework. Teachers too much use the questions of the sea tactics and cast nets everywhere, resulting in increased physical and mental stress on students. However, teachers neglect to point out their ideas to students and their effects are not obvious , And finally arouse students’ feelings of powerlessness to mathematics, even have negative emotions. Therefore, “reducing the negative effect and increasing efficiency” came into being, which provides a new way for students to learn.