"The Language of Maps" PPT

Description

"The Language of Maps" PPT

Part One: The Difference Between Maps and Landscape Maps

There are many types of maps, which can show the distribution of geographical things such as large areas, or even entire countries and continents.

Landscape map shows the surface morphology of a certain area.

Three elements of a map

(1) Scale

(2) Direction

(3) Legends and notes

The Language of Maps PPT, Part 2: Scale

The scale bar on the map indicates the degree to which the actual distance is reduced on the map, so the scale bar is also called a scale bar.

Calculation of scale

Given the distance on the ground and the distance on the map, find the scale:

Scale bar = distance on the map/distance on the ground

Given the scale and real distance, find the distance on the map:

Distance on the map = actual distance * scale bar

Given the distance and scale on the map, find the distance on the ground:

Distance on the ground = distance on the map/scale bar

Notice:

1. The scale is a fraction without a unit, and the numerator is usually 1.

2. The units of the numerator and denominator must be unified during the calculation process. For calculation results, the distance on the map is generally expressed in centimeters; the distance on the ground is generally expressed in kilometers or meters.

3. The conversion method between centimeters and kilometers is: centimeters minus five 0s become kilometers; kilometers plus five 0s become centimeters. The conversion method between meters and centimeters is to add or subtract two zeros.

That is: 1km=100000cm; 1m=100cm.

The Language of Maps PPT, Part 3: Class Summary

Three elements of map language: scale, direction, legend and annotation

1. Scale

Formula: Scale bar = distance on the map/distance on the ground

(Unit conversion: 1km=100000cm; 1m=100cm.)

Representation of scale bar:

Literal format: 1 centimeter on the picture represents 1 kilometer on the ground

Numeric: 1/100000 or 1 : 100000

Line segment type: 0_____1_____2km

2. Direction

General map (map without pointing mark): up, north, down, south, left, west, right, east.

Map with pointing signs: determine the direction based on the direction of the pointing signs

The map of the latitude and longitude network: longitude lines indicate the north-south direction, and latitude lines indicate the east-west direction.

3. Legends and notes

Legend: Symbols

Notes: text and numbers

Keywords: Free download of Geography PPT courseware for the sixth grade in Shanghai Education Edition, PPT download of the language of maps, .PPT format;

For more information about the "The Language of Maps" PPT courseware, please click the "The Language of Maps" ppt tab.

"The Language of Maps" PPT courseware:

The content of the first part of the PPT courseware "The Language of Maps": Direction on the map. Three major elements of map language: scale, direction, legend. Direction on the map. Determine the direction on the general map. Determine the direction on the map with indicators. Determine the direction on the Latitude and Latitude map. Judgment method...

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Update Time: 2024-11-24

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

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