论文部分内容阅读
传统的课堂教学是教师灌输知识,让学生崇尚书本,死记硬背。但是,在这知识剧增的年代,这种教学方法是不适应的。它严重地影响学生学习能力的培养,阻碍学生学习主动性的发挥。教学中,必须充分激发学生学习的主动性,引导他们积极思维,提高学习兴趣。总之,要教会学生自己学习知识,掌握学习主动权,这样会使我们的教学起到事半功倍的效果。下面从一节几何课的教学谈点己见。初中《几何》第二册中6.5节“三角形角平分线的性质”内容较为重要,定理不仅应用较多,而且证明的方法也是论证成比例线段问题的一种常用方法。但学生对证明此定理添加辅助线的方法和作用,对其知识的连贯性、规律性均较生疏,故而采取下列教授步骤。
The traditional classroom teaching is that teachers instill knowledge and allow students to advocate books and memorize them. However, in this age of increasing knowledge, this teaching method is not adaptable. It seriously affects the development of students’ learning ability and hinders the students’ learning initiative. In teaching, we must fully stimulate students’ initiative in learning, guide them to positive thinking, and increase their interest in learning. In short, we must teach our students to learn their own knowledge and master the initiative in learning. This will make our teaching more effective. Let’s talk from a lesson on geometry teaching. The content of the “Nature of the Triangle Bisector” in Section 6.5 of Geometry Book 2 of junior middle school is more important. The Theorem is not only widely used, but the method of proof is also a common method for proving the problem of proportional line segments. However, the students’ method and effect of adding an auxiliary line to prove this theorem is not familiar with the coherence and regularity of their knowledge. Therefore, the following teaching steps are taken.