"Ratio and Proportion" PPT Courseware 2

Description

"Ratio and Proportion" PPT Courseware 2

Understanding of Lianbi

Generally speaking, if the ratio of the first number to the second number is a:b, and the ratio of the second number to the third number is b:c, then the ratio of these three numbers can be written as a:b: c, it is said that a:b:c is the continuous ratio of three numbers a, b, c. In the same way, the continuous ratio of four numbers or more can be obtained.

Each term in a continuous ratio can be multiplied (divided) by a number that is not equal to 0, that is, if k≠0, then a:b:c=(ka):(kb):(kc). Properties of ratios Similar, but please note that a:b can be understood as a÷b, but a:b:c cannot be understood as a÷b÷c.

The key to writing a:b and b:c as consecutive ratios is to convert the consequent term of the previous ratio and the antecedent term of the next ratio into the same number. Method: Take the least common multiple of the consequent term of the previous ratio and the antecedent term of the next ratio as the middle term of the continuous ratio.

Keywords: ratio and proportion teaching courseware, Qingdao edition eighth grade mathematics volume PPT courseware download, eighth grade mathematics slide courseware download, ratio and proportion PPT courseware download, .PPT format;

For more information about the "Ratio and Proportion" PPT courseware, please click on the Ratio and Proportion ppt tab.

"Understanding Ratio" Ratio and Proportion PPT Courseware:

"Understanding Ratios" Ratio and Proportion PPT Courseware Teaching Objectives 1. Combine with specific examples and experience the process of understanding ratios. 2. Understand the meaning of ratio and ratio, and know the relationship between each part of ratio and the parts of division and fraction; be able to write the ratio of two numbers, and be able to calculate the ratio. 3. Feel...

"Basic Properties of Ratios and Simplified Ratios" Flash animation courseware on ratios and proportions:

"Basic Properties of Ratios and Simplified Ratios" Flash Animation Courseware for Ratios and Proportions This courseware is a teaching material for the second unit of the sixth grade mathematics volume of the Hebei Education Edition Basic Properties of Ratios and Simplified Ratios Flash Animation Courseware, with vivid content , please download! Key words:..

"Mixing Cement and Sand" Ratio and Proportion Flash Animation Courseware:

"Stirring Cement and Sand" Flash Animation Courseware on Ratios and Proportions This courseware is a teaching material on ratios and proportions in the second unit of the sixth grade mathematics volume of the Hebei Education Edition. Flash animation courseware on mixing cement and sand. The content is vivid and vivid. Please download it! Keywords: ratio and proportion teaching courseware, stir...

File Info

Update Time: 2024-09-30

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

Preview