"Jingwei Network on the Map" PPT courseware download

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"Jingwei Network on the Map" PPT courseware download

Part 1: Why make a globe?

A globe is a model of the earth. Could you please tell me the main purpose of the globe?

It can intuitively express the appearance of the earth and the distribution of geographical things, and can demonstrate natural phenomena such as earth movement.

Do you know the globe? Can you name the various parts?

Model of the Earth - Globe

Several basic concepts (earth axis, poles, latitudes, longitudes)

1. Earth’s axis: (imaginary) Earth’s rotation axis

2. Poles: The intersection of the Earth’s axis and the Earth’s surface

3. Parallel of latitude: A circle on the surface of the globe that is perpendicular to the earth's axis and goes around the earth.

4. Longitude: On the surface of the globe, the semicircle connecting the north and south poles and intersecting perpendicularly with the latitudes

Latitude and longitude network PPT on the map, part 2: division of longitude

Meridians are all semicircles of equal length. How to distinguish different meridians?

Internationally, the longitude passing through the original site of the Greenwich Observatory in London, England, is designated as the 0° longitude.

Thinking: What kind of longitude lines can form a circle?

Two conditions:

1. The sum of two longitudes is 180 degrees

2. The east and west longitudes of each other (except 0° and 180°)

Jingwei Network PPT on the map, part 3: Think about it

Determine whether the picture represents east longitude or west longitude? Southern latitude or northern latitude?

The east longitude increases toward the east, and the west longitude increases toward the west.

Northern latitude increases toward the north, and southern latitude increases toward the south.

Keywords: Shanghai Education Edition Geography PPT courseware for the first volume of the sixth grade for free download, PPT download of the latitude and longitude network on the map, .PPT format;

For more information about the PPT courseware "Jingwei Network on the Map", please click the Jingwei Network on the Map ppt tab.

"Jingwei Network on the Map" PPT download:

"Latitude and Longitude Network on the Map" PPT download Part 1: Course content 1. Understanding the globe. Model globe of the earth. Axis, North Pole, South Pole, Equator. 2. Meridian and Latitude Network. What is the difference between longitude and latitude lines? Longitude: The line on the Earth's surface that connects north and south...

"Jingwei Network on the Map" PPT courseware:

Contents of the first part of the PPT courseware "Longitude and Latitude Network on the Map": Revolution and rotation Earth's rotation 1. The direction of the Earth's rotation is ________; 2. The period of the Earth's rotation is __________; 3. Looking at the Earth's rotation above the North Pole, it appears _______ _direction;..

"Jingwei Network on the Map" PPT:

The first part of the PPT "Gratitude and Latitude Network on the Map": Understanding the Globe, a scaled-down model. Earth's axis, North Pole, South Pole, Equator. First understanding of longitude and latitude lines Longitude: also called meridian. Connecting the north and south poles, two corresponding longitudes form a complete circle (..

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Update Time: 2024-11-19

This template belongs to Geography courseware Shanghai Education Edition Geography for Sixth Graders Volume 1 industry PPT template

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