"Application of Proportion" Proportion PPT Courseware 7

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"Application of Proportion" Proportion PPT Courseware 7

1. What is proportion?

An expression that expresses two equal ratios is called a proportion.

2. What is the basic property of proportion?

In a ratio, the product of two external terms is equal to the product of two internal terms.

3. What is solution ratio?

Finding the unknown terms in a ratio is called solving the ratio.

4. What is direct proportion? What is inverse proportion?

Distance on the map = actual distance × scale

Actual distance = distance on the map ÷ scale

Use your knowledge of proportions to answer the following questions:

1. A garment factory processes a batch of suits. It was originally planned to require 40 people to complete the work in 15 days. Now how many more people need to be added if we want to complete the project 3 days ahead of schedule?

2. Use square tiles to pave the floor. If you use square tiles with a side length of 30 cm, 320 tiles are needed. If you use square tiles with a side length of 40 cm, how many tiles are needed?

3. An engineering team was laying a section of railway. The original plan was to pave 3.2 kilometers per day, but the actual paving was 25% more than the original plan per day. It actually took 12 days to complete the paving of this section of railway. How many days did it originally plan to take to complete the paving?

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For more information about the "Application of Proportions and Proportions" PPT courseware, please click on the "Proportions ppt Application of Proportions ppt" tab.

"Application Exercises of Proportion" PPT courseware of direct proportion and inverse proportion:

"Application Exercises of Proportion" PPT Courseware of Direct Proportion and Inverse Proportion Teaching Objectives 1. Through review, students can master the knowledge of proportion more skillfully and be able to solve some practical problems. 2. Cultivate students’ interest and ability to summarize and organize knowledge independently. ... ... ...

"Application of Proportion" Proportion PPT Courseware 6:

"Application of Proportion" Proportion PPT Courseware 6 1. Review old knowledge (1) Judgment Determine whether two related quantities are proportional? In what proportion? Give reasons. (1) The total distance, speed and time are certain. ( ) (2) The total number of pages is certain, the number of pages read and the remaining...

"Application of Proportion" Proportion PPT Courseware 5:

"Application of Proportion" Proportion PPT Courseware 5 1. Review old knowledge Judge whether the two quantities in each question below are proportional? In what proportion? and explain the reasons. Unit price quantity = total price (certain), total price is certain, unit price and quantity are inversely proportional. 2. Explore new knowledge because...

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Update Time: 2024-11-20

This template belongs to Mathematics courseware People's Education Press Mathematics Volume 2 for Sixth Grade industry PPT template

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