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引入数学概念不仅要考虑数学概念本身的实际内容,还要结合学生的认知水平及生活经验,才能有效突现概念的本质。注重概念的形成过程,符合学生的认知水平,是体现学生的主体性,是使学生形成正确的数学观,是使学生的认知过程成为一个再创造的过程。明确概念,适度的联系和发散可提高学生对概念的认识水平,感受到数学思想方法,培养数学能力。
The introduction of mathematical concepts not only to consider the actual content of the mathematical concept itself, but also combined with the students’ cognitive level and life experience, can effectively highlight the concept of the essence. Paying attention to the formation of concept, in line with the students ’cognitive level, is to reflect the students’ subjectivity, is to make students form a correct mathematical view, is to make the students cognitive process as a re-creation process. A clear concept, appropriate contact and divergence can improve students’ understanding of concepts, feel mathematical thinking and methods, and develop mathematical ability.