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# Understanding Scale PowerPoint PPT Presentation

Understanding Scale. SCALE: a comparison of distances on a map to distances on the earth. METHODS OF PORTRAYING SCALE ON A MAP: Graphic Scale = scale bar Verbal Scale = written statement Fractional Scale = representative fraction. What kind of scale?. “One inch to 5 miles”.

Understanding Scale

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Understanding Scale

### SCALE:a comparison of distances on a map to distances on the earth

• METHODS OF PORTRAYING SCALE ON A MAP:

• Graphic Scale = scale bar

• Verbal Scale = written statement

• Fractional Scale = representative fraction

What kind of scale?

“One inch to 5 miles”

Verbal scale

What kind of scale?

1:316,800 or 1/316,800

Fractional Scale

What kind of scale?

Graphic Scale

Scale: One of the “map essentials”!

When scale is not shown on a map – Beware!

The Week Magazine, July 4-11, 2008

These mushroom spores are too small to see, so we put them under a MICROSCOPE.

When we can see them, we can study them.

This planet is too big to see,

so we put it under a MACROSCOPE.

When we can see it, we can study it.

### Scale is Critical to Critical Thinking

• Using reason to decide what to believe

• Helps you assess the authenticity and accuracy of information

• Helps you apply careful, precise, persistent and objective analysis of any knowledge claim or belief to judge its validity.

Format of Many pre-1914 German School Atlases

Comparative Size of Germany and USA in 1914

• ETHNIC CONFLICT AND THE CONCEPT OF SCALE

• Ethnic conflicts abound on the world political map. To understand them, we use a set of concepts:

• minorities

• majorities

What is a minority?

“the smaller in number of two groups constituting a whole”

- Merriam-Webster OnLine

Djibouti’s Ethnic Composition:

Somali 60%

Afar 35%

### SERENDIB

CEYLON

SRI LANKA

• Sri Lanka

• Formerly Ceylon, now an island Republic in the Indian Ocean just southeast of India

• A British colony since 1796 became independent in 1948

• Marked by hostility among its ethnic groups

With about three-quarters of the population, what ethnic group in Sri Lanka is in the majority?

• Moors

• Sinhalese

• Tamils

• Burghers

SINHALESE

Language =

Sinhala

Buddhist

Religion =

With about one-fifth of the population, what ethnic group in Sri Lanka comprises the largest minority?

• Moors

• Sinhalese

• Tamils

• Burghers

TAMILS

Language =

Tamil

Religion =

Hindu

Leaves from Pipul tree

Are Buddhist symbols

Lion – Kingdom of Kandy

Sinhalese

Green – Muslim

Orange - Tamil

Ethnic comes from the Greek word ethnos meaning “nation” or “life way.” Yet, in our current lexicon we use it to describe a country. Within nations exist ethnic minorities.

Sri Lanka: 4 million Tamils

Sri Lanka:15 million Sinhalese

Ethnic Geography:

Who’s the minority?

Sri Lanka: 4 million Tamils

Sri Lanka:15 million Sinhalese

India:63 million Tamils

India:no Sinhalese

Religious Geography:

Sri Lanka: 4 million Hindus

Sri Lanka: 15 million Buddhists

India:800 million Hindus

India:very few Buddhists

• The Buddhist Realm:

• Sri Lanka:15 million Buddhists

• Bhutan2 million Buddhists

• Tibet3 million Buddhists

• Myanmar50 million Buddhists

• Thailand60 million Buddhists

• ChinaBuddhist?

### Pattern Probing Using Scale

• If we are close,

Then, we see lots of detail, but may not recognize overall patterns.

• If we are far away,

Then we miss lots of detail, but recognize overall patterns.

How does the use of a “macroscope” change your view of the following islands?

●Ireland:

Who’s the minority? Catholics or Protestants?

●Cyprus:

Who’s the minority? Greeks or Turks?

●Timor:

Who’s the minority? Muslims or Christians?

### SCALE:a comparison of distances on a map to distances on the earth

• METHODS OF PORTRAYING SCALE ON A MAP:

• Graphic Scale = scale bar

• Verbal Scale = written statement

• Fractional Scale = representative fraction