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正、反比例教学是小学数学教学的重点,也是难点,为了提高教学质量,必须先弄清正、反比例的知识结构和学生相应认知结构。
Positive and negative proportional teaching is the primary focus of mathematics teaching, but also difficult, in order to improve the quality of teaching, we must first clear the positive and inverse proportion of the knowledge structure and the corresponding cognitive structure of students.