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新课程标准明确指出,数学学习的内容要有利于学生主动地进行观察、实验、验证、推理与交流．动手实践、自主探索与合作交流是学生学习数学的重要方式,而“折纸、猜想、推理”可以为学生提供从事数学活动的机会,寓教于乐,集知识、方法、思维于一体,符合新课改的理念．下面试举例说明．例1将一矩形纸片OABC放在平面直角坐标系中,O为原点,C在x轴上,
The new curriculum standards clearly point out that the content of mathematics learning should be conducive to students’ initiative to observe, experiment, verify, reason and communicate. Hands-on practice, independent exploration and cooperation and exchange are important ways for students to learn mathematics, and “origami, conjecture, and reasoning” can provide students with the opportunity to engage in mathematics activities, entertain themselves, and integrate knowledge, methods, and thinking into one, in line with the new The concept of curriculum reform. Below try to illustrate. Example 1 A rectangular sheet of paper OABC is placed in a rectangular coordinate system. O is the origin and C is on the x-axis.