"Inverse Proportion" Proportional PPT Download

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"Inverse Proportion" Proportional PPT Download

Part One: Review Import

Below is the data of the tree height and its shadow length measured at the same time and place.

Are tree height and shadow length directly proportional to each other?

Inverse proportion PPT, part 2: exploring new knowledge

Pour the same volume of water into cups with different base areas.

Like this, for two related quantities, if one quantity changes, the other quantity will also change. If the product of the two corresponding numbers in the two quantities is constant, the two quantities are called inversely proportional quantities. , their relationship is called an inverse proportional relationship.

If the letters x and y are used to represent two related quantities, use k

represents their product (certain), and the inverse proportional relationship can be expressed by the following formula: x y = k (certain)

Inverse proportion PPT, part three: corresponding exercises

(1) What two quantities are in the table? Are they related quantities?

is the associated quantity

(2) Write several sets of products of the two corresponding numbers in these two quantities, compare the sizes of the products, and talk about what this product represents.

Inverse proportion PPT, part 4: Class summary

Two related quantities. When one quantity changes, the other quantity also changes. The product of the two corresponding numbers in these two quantities is constant. These two quantities are called inversely proportional quantities. Their relationship It is called an inverse proportional relationship, expressed in letters: x y = k (certain)

Inverse proportion PPT, Part 5: Consolidation exercises

1. Determine right or wrong and tell why.

(1) The numerator is constant, and the denominator is inversely proportional to the fractional value.

(2) 12÷3=4, so 3 and 4 are inversely proportional.

(3) The area of ​​a parallelogram is constant, and the base and height are inversely proportional.

2. Lay floor tiles for a classroom that is 9m long and 6m wide. The area of ​​each floor tile and the number of floor tiles required are as follows.

Is there an inverse relationship between the number of tiles required and the area of ​​each tile? Why?

Inverse proportion PPT, Part 6: Expansion exercises

1. There are three related quantities: x, y, and z, and xy=z.

(1) When z is constant, x and y have a ___ proportional relationship.

(2) When x is constant, z and y have a ___ proportional relationship.

(3) When y is constant, z and x have a ___ proportional relationship.

2. The area of ​​a rectangle is 36cm2. Let x and y represent its length and width. What is the proportional relationship between y and x? If their relationship is represented by an image, is the image a straight line?

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"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: 2024-09-30

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