"Application of Fan Chart" PPT Courseware of Fan Chart

Description

"Application of Fan Chart" PPT Courseware of Fan Chart

teaching objectives

1. Combined with specific examples, go through the process of reading statistical charts, analyzing data information, asking questions and answering questions.

2. Be able to read statistical graphs in daily life, answer questions related to statistical information, and try to ask questions and answer them yourself.

3. Be willing to collect sector statistical charts from newspapers, magazines and the Internet, and feel the intuitiveness and extensiveness of statistical charts in communicating and transmitting data information.

The land on the earth is divided into seven continents, and the area of ​​each continent is distributed as follows.

(1) What do the sectors in the picture represent?

Represents the percentage of each continent's total land area on the Earth.

(2) Among the seven continents in the world, which state has the largest area?

Asia is the largest, accounting for 29.3% of the Earth's total land area.

(3) Which two continents have a combined area close to half of the Earth’s total land area?

Asia and Africa

(4) Can you know the area of ​​each continent from the picture? Why?

By 2050, the world's population is expected to reach 9 billion.

(1) How many billions will the population of Asia reach by 2050? What percent of the world's total population?

5.268 billion

52.68÷90≈58.5%

(2) By 2050, what percent of the world’s population will Africa account for?

17.68÷90≈19.6%

(3) How much will the world’s population increase in 2050 compared to 1999?

90-60=3 billion (billion)

(4) Ask questions and answer them yourself.

practice

1. The ocean area accounts for about 70% of the earth’s area. The area distribution of the earth’s four oceans is as follows.

(1) Which ocean accounts for about 1/2 of the ocean area?

(2) The area of ​​the Pacific Ocean is approximately 179.679 million square kilometers. What is the approximate area of ​​the ocean on the Earth?

2. Communicate the fan charts you collected from newspapers, magazines, the Internet and other media with your classmates.

3. Choose a fan chart for analysis, and write a mathematical diary of about 200 words to talk about your feelings.

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For more information about the PPT courseware "Application of Sector Chart and Sector Chart", please click on the Sector Chart ppt Application of Sector Chart ppt tag.

File Info

Update Time: 2024-10-05

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

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