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讲解例题,是数学课堂教学活动的重要组成部分,也是学生在课堂上有效获取知识的途径之一。本文以联系实际生活中的时钟夹角问题为例,展现数学的应用价值。让学生体会到现实生活中处处有数学,数学就在自己身边,养成善于细心观察事物的良好习惯。通过解题,使学生领会灵活运用“方程法”、“变换法”、“形数相结合法”等数学思想方法。利于学生开拓视野,发展思维。
Explain the examples, is an important part of the mathematics classroom teaching activities, but also one of the ways in which students can effectively acquire knowledge in the classroom. In this paper, the angle of the clock in practical life is taken as an example to show the application value of mathematics. Let students realize that there are maths everywhere in real life, and mathematics is on their side to develop good habits of being good at carefully observing things. Through solving problems, students can understand and utilize the mathematical method of thinking such as “equation method”, “transformation method”, “combination of form and number” Benefit students to broaden their horizons, develop thinking.