诚然,因材施教是课堂教学的一个重要原则。因材的“材”包括两个方面的内容:一是教学所依据的材料,亦即课本内容;另一是教师传授知识的对象,亦即知识的接受者 学生。毫无疑义,认真地切实地扣住“材”,教学才不致于“流失”,因此,课堂45分钟,人们一般都认为,要面向学生,紧扣教材,不要旁及其它,以免“跑题”。 Admittedly, teaching students in accordance with their aptitude is an important principle of classroom teaching. The “material” of material includes two aspects: First, the material on which the teaching is based, that is, the content of the textbook; the other is the object of the teacher imparting knowledge, that is, the recipient of the knowledge. Undoubtedly, earnestly and effectively withholding the “material”, teaching will not be “lost”. Therefore, in the classroom for 45 minutes, people generally believe that it is necessary to face up to the students, closely affix teaching materials, and not to neglect others in order to avoid “difficulties.”