"Multiplication and Division of Fractions" PPT courseware

Description

"Multiplication and Division of Fractions" PPT courseware

【learning target】

1. Explore the rules of multiplication and division of fractions by analogy with the rules of multiplication and division of fractions.

2. Be able to perform simple multiplication and division operations on fractions.

3. In the process of transforming fractional division into multiplication, further experience the application of transformation ideas in mathematics.

communication and discovery

According to the distributed preview study plan, students work in groups to exchange questions before class implementation in the study plan and confirm each other's preview results.

Discuss difficult questions and exchange what mathematical knowledge and methods you have learned in the preview. Are there any doubts?

[Rules for multiplication of fractions]

To multiply two fractions, take the product of the numerators as the numerator of the product, and take the product of the denominators as the denominator of the product;

[Rule of division of fractions]

To divide two fractions, reverse the numerator and denominator of the division formula, and then multiply it by the dividend.

[Rules for multiplication and division of fractions]

To multiply two fractions, take the product of the numerators as the numerator of the product, and take the product of the denominators as the denominator of the product;

To divide two fractions, reverse the positions of the numerator and denominator of the division formula, and then multiply it by the dividend.

【Expansion training 1】

First simplify x2/x-1÷x/x2-1 and then choose an x ​​value you like and substitute it into the evaluation.

【Expansion Training 2】

calculate:

x2+2x+1/x2+4x+4÷(x+1)·x+2/x+1

Keywords: Teaching courseware for multiplication and division of fractions, Qingdao edition eighth grade mathematics volume PPT courseware download, eighth grade mathematics slide courseware download, multiplication and division of fractions PPT courseware download, .PPT format;

For more information about the "Multiplication and Division of Fractions" PPT courseware, please click on the "Multiplication and Division of Fractions" ppt tag.

"Multiplication and Division of Fractions" PPT Courseware 2:

"Multiplication and Division of Fractions" PPT courseware 2 The rules of multiplication and division of fractions are similar to those of fractions [The rules of multiplication and division of fractions] When two fractions are multiplied, the product of the numerators is taken as the numerator of the product, and the product of the denominators is taken as the product. The denominator of; when dividing two fractions, add the numerator of the division formula..

File Info

Update Time: 2024-11-21

This template belongs to Mathematics courseware Qingdao Edition Eighth Grade Mathematics Volume 1 industry PPT template

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