Why Classify?
What is classification?
Organizing things based on their
characteristics-placing them in groups
Taxonomy – giving objects a name
What do we classify?
Cavemen
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Scientists
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Musicians
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YOU?????
Aristotle
Back in the B.C. days
Classified things by how they moved
If they moved – Animal
 If they didn’t move – Plant
 If they were an animal, how did they
move?
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Walking
 Swimming
 Flying
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So what’s the problem?
Things that move alike may NOT be
related
Things that don’t move alike may BE
related
Some things don’t fit in any category
Some things can fit in several
categories
Then what do we do?
Agree on what to look at
Agree on what to call it
Change things if you find out more
Classification systems
Classification key ( or “dichotomous” key)
 Binomial nomenclature (two names)
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Let’s do it!!!!
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Why Classify? - Mount Logan Middle School