过重的课业负担严重损害少年儿童的身心健康,把减负落实到教育的全过程,促进学生生动活泼地学习,健康快乐地成长。初三学生时间紧、任务重,化学教学中只有打造高效课堂,才能提高教学质量。 The overburdened schoolwork burden seriously damages the children’s physical and mental health, implements the burden reduction in the whole process of education, and promotes students to learn in a lively manner and grow up in a healthy and happy manner. Junior high school students have a tight schedule and heavy tasks. In chemistry teaching, only effective classrooms can be created to improve teaching quality.