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波利亚说过,当你找到了第一棵蘑菇后.再四处看看,它们总是成群生长.在课堂教学中,我们以课本例题为生长点,引领学生纵深思考,对拓展学生思维水平,培养学生自主探索能力将起到不可估量的作用.下面笔者就自己与学生对一道课本例题的探究性学习和大家交流.我校八年级使用的是苏科版教材.在“等腰三角形的轴对称性”一节中,课本安排了这样一道例题:如图1.在△ABC 中,AB=AC.点 D 在 BC 上,且 AD=BD.找出图中相等的角并说明理由.
Polya said that when you find the first mushroom, then look around, they always grow in groups.In the classroom teaching, we textbook example for the growth point, leading students to think in depth, to expand student thinking Level, develop students’ ability to explore independently will play an immeasurable role. The following author on their own and students on a textbook example of inquiry learning and exchange .Such eighth grade of our school is Suke version of textbooks. In the section “Axisymmetry of the triangle”, the textbook arranges the following example: Figure 1. In ABC, AB = AC. Point D is on BC and AD = BD. Find the equal angles in the figure and Explain the reasons.