课堂学习负担小,效率高是所有教师和学生都追求的一种学习状态。可是在学习过程中很多学生都会感觉压力大,效率低,对于课堂学习没有很大兴趣。为此,教师要采用科学的教学手段,借力微课、合作学习、课堂练习以及实验教学来提高学生的学习主动性,促进学生主动参与课堂,实现减负增效。 Classroom learning burden is small, high efficiency is all teachers and students are pursuing a state of learning. However, during the learning process, many students feel pressured, inefficient and have little interest in class learning. To this end, teachers should adopt scientific teaching methods, leveraging micro-class, cooperative learning, classroom practice and experimental teaching to improve students’ learning initiative and promote students to take the initiative to participate in the classroom, to achieve the burden and efficiency.