"Proportion" Direct proportion and inverse proportion PPT courseware

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"Proportion" Direct proportion and inverse proportion PPT courseware

Understand and master the meaning and basic properties of proportion, and recognize the names of each part of proportion; be able to use the meaning or properties of proportion to judge whether two ratios can form a proportion.

Cultivate students' abilities to conduct preliminary observation, analysis, comparison, judgment, and generalization, as well as their awareness of independent participation and the spirit of active inquiry.

Two ratios from which of the following groups can form a proportion? Write the proportions of the composition.

6:10 and 9:15

20:5 and 1:4

The difference between ratio and proportion:

Ratio means dividing two numbers, with only two terms. Proportion represents two equations whose ratios are equal and has four terms.

Multiply the two inner terms and the two outer terms of the following four proportions. What do you find?

2 �3=4 �6 6 � 8=15 �20

1.2 �0.9=0.8 �0.6

Basic properties of proportion

In a proportion, the product of two external terms is equal to the product of two internal terms, which is called the basic property of proportion.

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For more information about the "Proportional Proportional and Inverse Proportional" PPT courseware, please click on the Proportional PPT Direct Proportional and Inverse Proportional PPT tab.

"Application of Inverse Proportional Function" PPT download of inverse proportional function:

"Applications of Inverse Proportional Functions" PPT download of inverse proportional functions, 15 pages in total. Basics of knowledge points Knowledge point 1 Application of inverse proportional function in real life 1. The number of books y (ten thousand copies) that a printing press can print per year is inversely proportional to its usage time x (years)..

"Applications of Inverse Proportional Functions" Inverse Proportional Function PPT Courseware (Lesson 2):

"Applications of Inverse Proportional Functions" PPT courseware of inverse proportional functions (Lesson 2), 20 pages in total. Learning objectives: Inverse proportional function in physical mechanics and thermal science. Inverse proportional function in physical electricity. ... ... Understanding new knowledge. Knowledge points. Inverse proportional function in physical mechanics and thermal science..

"Applications of Inverse Proportional Functions" Inverse Proportional Function PPT Courseware (Lesson 1):

"Applications of Inverse Proportional Functions" PPT courseware of inverse proportional functions (Lesson 1), 28 pages in total. Learning objectives: The relationship expression of the inverse proportional function in practical problems. The image of the inverse proportional function in practical problems... ... ... Understanding new knowledge. Knowledge points: The inverse proportion in practical problems..

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Update Time: 2024-09-16

This template belongs to Mathematics courseware Western Normal University Edition Sixth Grade Mathematics Volume 2 industry PPT template

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