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AIM: What is classifying?
VOCABULARY: Classification Levels (tiers)
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You will be able to explain why classification systems are important.
Objectives: You will be able to explain why classification systems are important. You will be able to demonstrate your understanding with a dichotomous key.
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Question: How many different types of music are there? Rap, classic … Country, heavy metal … Rock, dance … Hip hop, children’s …
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Question: Could you imagine shopping at a music store which did not separate their CD’s by type? Or artist But just left them in a pile!
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IMAGINE: Shopping at a shoe store where boys, girls, men, women’s and kids shoes were all mixed together? Would it work? Would you go back? How are shoe stores typically classified?
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Why do Scientists Classify?
To make things easier To groups things
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Classification: Definition organization into groups or categories.
Categorization of a population by common characteristics which the population has or does not have. Make sure characteristics are observations and not inferences !
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Classification System
INSECTS
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Classification System
Two Group System INSECTS Those without wings Those with wings
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Two Group System INSECTS Those without wings Those with wings
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Classification System
Animals
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Classification System
Three Group System Animals With no legs Animals with 4 legs Animals with 2 legs
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Classification System
Three Group System Animals With no legs Animals with 4 legs Animals with 2 legs
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Animals Animals with 4 legs 3 groups 2 Levels Animals with 2 legs
With no legs wings No wings With Tail No Tail gills No gills
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Animals Animals with 4 legs 3 groups 2 Levels Animals with 2 legs
With no legs wings No wings With Tail No Tail gills No gills
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Animals Animals with 4 legs 3 groups 2 Levels Animals with 2 legs
With no legs wings No wings With Tail No Tail gills No gills
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Animals Animals with 4 legs 3 groups 2 Levels Animals with 2 legs
With no legs wings No wings With Tail No Tail gills No gills
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Classification System
2 groups 2 Levels Insects have wings No wings Wings fold over body Antennae Wings don’t fold No antennae Classification System
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Classification System
2 groups 2 Levels Insects have wings No wings Wings fold over body Antennae Wings don’t fold No antennae Classification System
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2 groups 2 Levels Insects have wings No wings No antennae Antennae
Wings fold over body Antennae Wings don’t fold No antennae
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INSECTS Those without wings Those with wings
!! HINT !! You want to title each groups or level with descriptive observations – not just examples. INSECTS Those without wings Those with wings
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Class Activity WS WS2
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Homework: INTERNET QUESTIONS WRITE A PARAGRAPH SUMMARIZING THE AIM USING THE VOCABULARY
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