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繁分数的教学,是在学生学习了分数四则混合运算之后进行的。繁分数的意义和化简与分数的意义、分数与除法的关系有着密切的联系。因此,我在教学中,紧紧抓住这一联系,运用“发现法”引导学生亲自探索繁分数的概念,亲自发现化简繁分数的方法和道理,从而达到使学生既长知识又长智慧的目的。一、抓住新旧知识的联系,提出问题,揭示繁分数的概念。繁分数的产生,是以
The teaching of the multiplicity is carried out after the students have studied the fractional four mixed arithmetic. The significance and simplification of the meaning of the meaning of the fraction, the relationship between the score and the division are closely linked. Therefore, in my teaching, I firmly grasp this link, using the “discovery method” to guide students to explore the concept of the number of copies, to discover the method and reason of simplifying the number of copies, so as to enable students to have both long-term knowledge and long-term wisdom the goal of. First, seize the old and new knowledge of the link, raise questions, reveal the concept of complex numbers. The production of the multiplicity, therefore