"Inverse Proportion" Proportion PPT Courseware 2

Description

"Inverse Proportion" Proportion PPT Courseware 2

teaching objectives

1. Students are required to understand the meaning of the inverse proportional relationship, understand and master the changing rules and characteristics of inversely proportional quantities, and be able to judge whether two quantities are in an inversely proportional relationship based on the meaning of inverse proportion.

2. You must improve your abilities of observation, analysis, synthesis and generalization, and master the method of judging whether two related quantities are inversely proportional.

What is the meaning of the proportional relationship? How to express this relationship with letters?

What is the key to judging whether two related quantities are directly proportional?

What is an inverse proportional relationship?

For two related quantities like Example 1 and Example 2, when one quantity changes, the other quantity also changes. When the two quantities change, the product of the two corresponding numbers in the two quantities is constant. In this way, the two related quantities are called inversely proportional quantities, and the relationship between them is called an inversely proportional relationship.

Determine whether the two quantities in the following questions are inversely proportional.

(1) The area of ​​a rectangle is certain, its length and width.

(2) The diameter of the circle and its circumference.

(3) The volume of a rectangle is certain, its base area and height.

(4) The total number of paper pasting boxes is certain, the number of pasting boxes per person and the number of people.

(5) The area of ​​a triangle is certain, its base and height.

(6) The unit price is certain, the total price and quantity are fixed.

Summary of this lesson

This lesson mainly focuses on the inverse proportional relationship. Students are required to compare the direct proportional relationship and understand what two quantities are inversely proportional to each other. What is an inverse proportional relationship? And can solve practical problems of inverse proportion.

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For more information about the "Inverse Proportional Proportion" PPT courseware, please click the Inverse Proportional ppt Proportional ppt tag.

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Update Time: 2024-11-16

This template belongs to Mathematics courseware Mathematics Volume 2 for Grade 6 of Beijing Normal University industry PPT template

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