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题目:用两个较小的圆纸片,能不能盖住一个较大的圆纸片?请说明理由。一诱惑:激发认知冲突,引导主体初步参与要让学生真正参与数学课堂教学,学生的参与欲望是一个不可忽视的因素,而学生的认知冲突则是激发学生参与欲望的根本原因。所以,在数学课堂教学中,教师要不断设置认知冲突,以激发学生的参与欲望。这道题目只是一个刺激或暗示,不同的学生会产生不同的心理反应,这一点教师要能预见到。主要的心理反应有:(1)迷,不知如何判断,此时,教师引导时可以通过硬币具体试验使学生明白,“能盖住”和
Title: With two smaller pieces of paper, can cover a larger piece of paper? Please explain the reasons. A temptation: to stimulate cognitive conflicts, to guide the initial participation of the main part To make students really involved in mathematics classroom teaching, students’ desire to participate is a factor that can not be ignored, and students’ cognitive conflicts are the root causes to stimulate students’ desire to participate. Therefore, in the teaching of mathematics, teachers should constantly set cognitive conflicts to stimulate students’ desire to participate. This topic is only a stimulus or implication, different students will have different psychological reactions, which teachers should be able to foresee. The main psychological reactions are: (1) fans, I do not know how to judge, at this time, the teacher can guide students to understand the specific test through the coin, “can cover” and