Information about Latitude, Longitude, And Scale

Published on August 8, 2008

Author: acavis

Source: slideshare.net

Latitude and Longitude Where do these Numbers Come From??

Where do these Numbers Come From??

Latitude and Longitude cont. Latitude and Longitude are basically a giant coordinate system. Map of Michigan Practice Questions

Latitude and Longitude are basically a giant coordinate system.

Map of Michigan

Practice Questions

Degrees, Minutes, and Seconds Degree – degrees are marked on a map/globe by the solid lines The distance between all lines of longitude is approximately 69 miles The distance between lines of latitude are approximately 69 miles at the equator and 0 miles at the poles

Degree – degrees are marked on a map/globe by the solid lines

The distance between all lines of longitude is approximately 69 miles

The distance between lines of latitude are approximately 69 miles at the equator and 0 miles at the poles

Degrees, Minutes, and Seconds cont. Minutes – 1 minute = 1/60 of a degree Seconds – 1 second = 1/60 of a minute Like in time: 60 seconds in a minute; 60 minutes in an hour (degree) The units are subdivided like scale on a graph Could go by 100’s, 10’s, 1’s, etc. Could be divided further into tenths, hundredths, and thousandths (like in decimals)

Minutes – 1 minute = 1/60 of a degree

Seconds – 1 second = 1/60 of a minute

Like in time: 60 seconds in a minute; 60 minutes in an hour (degree)

The units are subdivided like scale on a graph

Could go by 100’s, 10’s, 1’s, etc.

Could be divided further into tenths, hundredths, and thousandths (like in decimals)

Scale Scale is the relationship between distances on a map and distances on the earth’s surface Represented as a fraction (1/20) or a ratio (1:20) What does this mean?

Scale is the relationship between distances on a map and distances on the earth’s surface

Represented as a fraction (1/20) or a ratio (1:20)

What does this mean?

Scale and the Real World • Other than mapmakers, what professions use scale? • Scale is constant for a given piece - Ex: a map has the same scale for the entire map or a blueprint has the same scale for the whole blueprint

• Other than mapmakers, what professions use scale?

Scale and the Real World cont. Hot Wheels Clip Advertising Clip What kind of math did the people in these videos use? What did they have in common?

Hot Wheels Clip

Advertising Clip

What kind of math did the people in these videos use?

What did they have in common?

Large Scale vs. Small Scale Large Scale – small area is covered with a large amount of detail Ex: 1:10 Detailed map of the ATA Small Scale – large area is covered with a small amount of detail Ex: 1: 1,000,000 A Globe

Large Scale – small area is covered with a large amount of detail

Ex: 1:10

Detailed map of the ATA

Small Scale – large area is covered with a small amount of detail

Ex: 1: 1,000,000

A Globe

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