课堂教学是学校教学的主要方式,提高教学效率是所有教师不断追求的目标。当根据教材内容进行教学时,学生遇到了困难,教师就有必要对知识进行整合,甚至不惜“添油加醋”地补充一些教材外的内容,这样可起到激活学生内在世界已有的“经验知识”的作用,有利于学生自主建构知识。这种方式看上去浪费了教学时间,实际上却提高了教学效率。 Classroom teaching is the main method of school teaching, and improving teaching efficiency is the goal that all teachers are constantly pursuing. When teaching according to the content of teaching materials, students encounter difficulties, teachers need to integrate knowledge, and even at the “exaggeration” to add some content outside the textbooks, which can play to activate the inner world of students already Experience knowledge "role, is conducive to students to build their own knowledge. This approach seems a waste of teaching time, but actually improve the efficiency of teaching.