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《全日制义务教育课程标准》指出:“学生的学习内容要有利于学生主动地进行观察、实验、猜测、验证、推理与交流”.美国心理学家布鲁纳指出:“探索是数学教学的生命线”.探索得来的知识最难忘、最深刻,比教师直接给出的更有效,学生能体会到“发现”的真正乐趣.我根据上述理念进行了一次教学尝试.问题1如图1,在△ABC中,能作一直线将其分成面积相等的两部分吗?学生1:(举手)能!只要作它
The “Full-time Compulsory Education Curriculum Standards” pointed out: “Students’ learning content must be conducive to students’ active observation, experimentation, guessing, verification, reasoning, and communication.” American psychologist Bruner pointed out: “Exploration is The lifeline of mathematics teaching ”. The most memorable and profound knowledge gained from exploration is more effective than the teacher gives directly. The students can realize the real pleasure of “discover”. I conducted a teaching attempt based on the above ideas. Question 1 As shown in Figure 1, in △ABC, can we make a straight line to divide it into two parts of equal area? Student 1: (raise a hand) Can! Just make it