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“把教学本质定位为交往,是对教学过程的正本清源”;“没有交往,没有互动,就不存在或未发生教学”。《美国学校数学课程与评价标准》强调“为数学交流而学习”,进一步指出,把学生培养成为有数学素养的社会成员的一条重要标准:就是他们会数学交流。《数学课程标准》指出“数学交流”教学意义重大,强调从学习者的生活经验和已有的知识背景出发,要求学生在充分进行数学实践活动的基础上,有广阔的交流的空间,使他们真正理解和掌握数学知识、思想和方法,同时也获得广泛的数学活动经验。如我班学生在比较下图中两个分数的大小时,产生了分歧:
“Positioning the nature of teaching as an interaction is a clear source of the original teaching process.” “There is no teaching or there is no teaching without interaction and interaction.” The American School Mathematics Curriculum and Evaluation Criteria emphasizes “learning for math communication” and further states that it is an important criterion to train students to become mathematically educated members: that is, they can communicate in mathematics. The standard of mathematics curriculum points out that the teaching of “maths exchange” is of great significance. It emphasizes that based on the learners’ life experience and the existing knowledge background, students are required to have ample space for exchange on the basis of full implementation of maths practice so that they Real understanding and mastery of mathematical knowledge, ideas and methods, but also access to a wide range of mathematical activities experience. As my class students in the comparison of the two scores below the size of the differences: