论文部分内容阅读
繁分数是分数的一种表现形式。它既能简化某些四则运算的表现形式,又能运用它简化某些较复杂应用题的思维程序,它还是中学阶段学习分式等知识的基础,因此,不可忽视对繁分数的教学研究,要努力提高繁分数教学的质量。现就繁分数的意义、化简、应用三个方面谈一点肤浅的认识和体会。(一)关于繁分数的意义为了提高学生化简繁分数的能力,并能在实际中灵活运用,必须首先使学生理解繁分数的意义,了解繁分数与分数的区别和联系,掌握它与四则运算的关系。在教学时,首先要复习除法和分数的关系,然后让学生用繁分数来表示如下列各题:
Fanfan is a manifestation of the score. It not only simplifies the expression of some four arithmetic operations, but also simplifies the thinking process of some more complicated application questions. It is also the basis of learning fractional knowledge in secondary school. Therefore, Efforts should be made to improve the teaching quality of the multiplicity. Now on the meaning of complex numbers, simplification, application of three aspects to talk about a little superficial understanding and experience. (A) of the significance of the number of complex In order to improve the ability of students to simplify and multiply scores, and can be flexibly used in practice, we must first enable students to understand the meaning of the number of multiplication, understanding the difference between the number and the number of fractal and contact, master it and four The relationship between operations. In teaching, we must first review the relationship between division and score, and then let students use the multiplicity to represent the following questions: