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《数学课程标准》强化了几何变换的内容,将几何变换思想、方法具体化.这是义务教育数学课程标准中最突出的特色之一,改革的力度也较大.这促使我们深入思考几何变换内容对学生数学学习的影响,发掘学习几何变换内容的价值.1.几何变换有利于培养学生的图形直觉和合情推理能力.由于几何图形具有直观、形象的特点,学生更易于从现实情境中抽象出数学的概念、理论和方法,而几何变换又兼有动手实验和头脑想象实验的优点.事实上,学生对于几何变换并不陌生.生活中随处可见
The Standard of Mathematics Curriculum strengthens the content of geometric transformation and embodies the idea and method of geometric transformation, which is one of the most prominent features in the standard of compulsory education mathematics curriculum, and the reform is also more vigorous, which prompts us to think deeply about geometric transformation Content on students ’mathematics learning, explore the value of learning geometry transformation content.Geometry transformation is conducive to the development of students’ graphics intuition and co-rationality reasoning ability.As the geometry has the characteristics of visual and image, students are more likely to abstract from the real situation The concept of mathematics, theory and methods, and geometric transformation and hands-on experiments and minds both experimental advantages. In fact, students are no stranger to geometric transformation. Life can be seen everywhere