在教师的指导下,对所学的化学知识进行再认识,促使学生更好地巩固所学的化学知识,提高学生的化学知识水平及应用化学知识解决实际问题的能力。在初中化学教学实践中,我尝试把“低负高效”的教学理念运用到化学复习中,从而科学、系统、有效地进行化学复习,帮助学生掌握化学教学内容,提高复习效率。 Under the guidance of teachers, we should re-understand the chemistry knowledge we learn, encourage students to better consolidate what they have learned, enhance students’ knowledge of chemistry and their ability to apply chemical knowledge to solve practical problems. In junior high school chemistry teaching practice, I try to apply the teaching concept of “low negative and high efficiency” to the chemical review so that the chemical review can be conducted scientifically, systematically and effectively to help students master the chemistry teaching content and improve the efficiency of the review.