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AIM: What is a Dichotomous Key? VOCABULARY: Classification Dichotomous Key.

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Presentation on theme: "AIM: What is a Dichotomous Key? VOCABULARY: Classification Dichotomous Key."— Presentation transcript:

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2 AIM: What is a Dichotomous Key? VOCABULARY: Classification Dichotomous Key

3 AIM: What is a Dichotomous Key? Objectives: 1. You will be able to explain why classification systems are important. 2.You will be able to demonstrate your understanding with a dichotomous key.

4 AIM: What is a Dichotomous Key? Question: Why do we classify things (like at the shoe store or the grocery store)? To make things easier!

5 AIM: What is a Dichotomous Key? Question: Why do scientists classify things? TO MAKE THINGS EASIER

6 AIM: What is a Dichotomous Key?

7 Is a system used by scientists to CLASSIFY unknown organisms by examining the characteristics of the organism and then determining to which group that unknown organism should be placed based upon those characteristics.

8 AIM: What is a Dichotomous Key? 1.Divides a larger group in smaller groups 2.Typically, it may separate objects into groups that have it and those that dont have it

9 AIM: What is a Dichotomous Key?

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12 Dichotomous Key of Transportation Vehicles Vehicles with wheels:

13 AIM: What is a Dichotomous Key? Unicycle, skates, a/p, bike, train, car, bus Canoe, boat, sailboat, Dichotomous Key of Transportation Vehicles Vehicles with wheels:

14 AIM: What is a Dichotomous Key? Wheels made of rubber/plastic: Unicycle, skates, ap, bike, train, car, bus Canoe, boat, sailboat, Dichotomous Key of Transportation Vehicles Vehicles with wheels:

15 AIM: What is a Dichotomous Key? Wheels made of rubber/plastic: Unicycle, skates, ap, bike, train, car, bus Canoe, boat, sailboat, Unicycle, skates, ap bike, car, bus train Dichotomous Key of Transportation Vehicles Vehicles with wheels:

16 AIM: What is a Dichotomous Key? Wheels made of rubber/plastic: Unicycle, skates, ap bike, train, car, bus Canoe, boat, sailboat, Unicycle, skates, ap bike, car, bus train Carries over 10 people: Dichotomous Key of Transportation Vehicles Vehicles with wheels:

17 AIM: What is a Dichotomous Key? Wheels made of rubber/plastic: Unicycle, skates, bike, train, car, bus Canoe, boat, sailboat, Unicycle, skates, bike, car, bus train Carries over 10 people: Bus, apUnicycle, skates bike, car Dichotomous Key of Transportation Vehicles Vehicles with wheels:

18 AIM: What is a Dichotomous Key?

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20 Dichotomous Key of Animals Animals with 4 legs

21 AIM: What is a Dichotomous Key? Horse, gorilla, cow Ostrich, worm, shark, man, rooster Dichotomous Key of Animals Animals with 4 legs:

22 AIM: What is a Dichotomous Key? Animals with tail: Horse, gorilla, cow Ostrich, worm, shark, man, rooster Dichotomous Key of Animals Animals with 4 legs :

23 AIM: What is a Dichotomous Key? Animals with tail: Horse, gorilla, cow Ostrich, worm, shark, man, rooster Horse, cowgorilla Dichotomous Key of Animals Animals with 4 legs:

24 AIM: What is a Dichotomous Key? Animals with a tail: Horse, gorilla, cow Ostrich, worm, shark, man, rooster Horse, cowgorilla Animals with utters: Dichotomous Key of Animals Animals with 4 legs:

25 AIM: What is a Dichotomous Key? Ostrich, worm, shark, man, rooster Animals with a tail: Horse, gorilla, cow Horse, cowgorilla Animals with utters: cowhorse Dichotomous Key of Animals Animals with 4 legs:

26 AIM: What is a Dichotomous Key? Tips for Classifying Carefully observe objects to notice similarities and differences Place objects into either one group or another – not both groups Examine each group you create – to see if it can be further subdivided

27 AIM: What is a Dichotomous Key? Class Activity

28 AIM: What is a Dichotomous Key? Homework: INTERNET QUESTIONS WRITE A PARAGRAPH SUMMARIZING THE AIM USING THE VOCABULARY


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