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“纸上得来终觉浅,绝知此事要躬行”。教学改革的实践证明:任何一种有效的、成功的教育,都必须是有学生主体参与的。笔者最近有幸参加了两次教研活动,并两次执教了《三角形的认识》这一节课。经历了数次磨课的历程,面对“三角形的认识”这一文本,也有了自己不同的思考,欲与大家共同探讨。教学再现:第一次磨课师:同学们,认识这个图形吗?在生活中哪里见到过?(课件欣赏生活中的三角形)师:那你知道什么样的图形是三角形吗?师:看看书上是怎么说的?请打开书本,全班齐读(生读三角形的定义)师:知道了什么是三角形,那它有什么特性呢?老师带来了个
“To the end of the paper to feel shallow, must know this matter to practice”. The practice of teaching reform proves that any kind of effective and successful education must involve students. I recently had the honor to participate in two teaching and research activities, and coached the “triangle of knowledge” this lesson twice. After going through several courses of abstraction, in the face of the text of “Understanding of the Triangle”, I also have my own thinking and I would like to discuss with you all. Teaching Reproduction: The first time grinding teacher: Students, recognize this figure? In the life where to see? (Courseware to enjoy the life of the triangle) Teacher: Then you know what kind of figure is a triangle? Read the book is how to say? Please open the book, read the class Qi (reading the definition of the triangle) Teacher: know what is the triangle, then it has what characteristics? Teacher brought a