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勾股定理是我国古代数学的一项伟大成就.勾股定理为我们提供了直角三角形三边之间的数量关系,它的逆定理为我们提供了判断一个三角形是否是直角三角形的依据,也是判定两条直线是否互相垂直的一个方法.这些成果被广泛应用于数学和实际生活的各个方面.因此我在教学《勾股定理应用》时从以下几个方面来体现.1在学生生活经验的氛围中进行教学,引导学生自己思考数学来源于生活,生活中也处处有数学.许多数学问题都是人们在生活实践中发现和总结出来的,只有学生发现问题,
The Pythagorean theorem is a great achievement of ancient Chinese mathematics.The Pythagorean theorem provides us with the quantitative relationship between the three sides of a right triangle and its inverse theorem provides us with the basis for judging whether a triangle is a right triangle or not, The two lines are perpendicular to each other a method.These results are widely used in all aspects of mathematics and real life.So I teach teaching “Pythagorean theorem” from the following aspects to reflect.1 In the atmosphere of the student life experience In order to guide students to think mathematics from their own life, life is also full of mathematics.Many mathematical problems are found in the life practice and concluded that only students find problems,