"Problem Solving" Ratio and Proportion PPT Courseware

Description

"Problem Solving" Ratio and Proportion PPT Courseware

teaching objectives

1. Experience the process of comprehensively applying knowledge such as ratios and proportions to solve practical problems in life.

2. Be able to use the knowledge learned to make different assorted sugar preparation plans and improve the ability to solve practical problems.

3. Experience the process of exchanging preparation plans with others, and have your own ideas and suggestions on the preparation of assorted sugar.

Option 1: Choose toffee, halva and chocolate candies.

2+3+5=10

Toffee: 50×2/10=10 (kg) 24×10=240 (yuan)

Crispy candy: 50×3/10=15 (kg) 10×15=150 (yuan)

Chocolate candies: 50×5/10=25 (kg) 18×25=450 (yuan)

Assorted sugar per kilogram: (240+150+450)÷50=16.8 (yuan)

Option 2: Choose milk candies, halva and fruit candies.

2+3+5=10

Toffee: 50×2/10=10 (kg) 24×10=240 (yuan)

Crispy candy: 50×3/10=15 (kg) 10×15=150 (yuan)

Fruit candy: 50×5/10=25 (kg) 14×25=350 (yuan)

Assorted sugar per kilogram: (240+150+350)÷50=14.8 (yuan)

practice

1. Choose any three kinds of sugar from the following and mix it into 100 kilograms of assorted sugar according to 2:3:5. Make the preparation plan with the lowest and highest unit price of assorted sugar.

2. A light blue paint is prepared with white paint and blue paint at a ratio of 3:1.

(1) There are 12 kilograms of white paint now. How many kilograms of blue paint are needed to make this light blue paint?

(2) Now we need to use this paint to paint a street-facing wall 300 meters long and 2 meters high. How many kilograms of white paint and blue paint will be needed to paint this wall?

(3) How much will it cost to buy paint after painting this wall?

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For more information about the "Problem Solving Ratios and Proportions" PPT courseware, please click the "Problem Solving ppt Ratios and Proportions ppt" tab.

"Problem Solving" PPT courseware download:

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"Problem Solving" PPT download:

"Problem Solving" PPT download Part 1: Concise explanation of classic questions 1) Do the math yourself: How much is the price reduction for each piece of clothing? The price of the wool sweater is reduced by 145 yuan, 525-380=145 (yuan). The price of the down jacket of 560 yuan is reduced by 162 yuan, 560-398=162 (yuan). What about the other items? ..

"Problem Solving" PPT:

Contents of the first part of "Problem Solving" PPT: Learning objectives 1. Understand the meaning of integer division; 2. Understand division with remainders; 3. Master the relationship between the various parts of division with remainders; 4. Cultivate analysis, judgment and logical reasoning Ability and ability to solve practical problems...

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Update Time: 2024-11-16

This template belongs to Mathematics courseware Hebei Education Edition Sixth Grade Mathematics Volume 1 industry PPT template

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