aim: what is a dichotomous key? vocabulary: classification dichotomous key
TRANSCRIPT
AIM: What is a Dichotomous Key?
VOCABULARY:
Classification
Dichotomous Key
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.
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!
AIM: What is a Dichotomous Key?
Question:
Why do scientists classify things?
TO MAKE THINGS EASIER
AIM: What is a Dichotomous Key?
AIM: What is a Dichotomous Key?
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.
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 “don’t have it”
AIM: What is a Dichotomous Key?
AIM: What is a Dichotomous Key?
AIM: What is a Dichotomous Key?
AIM: What is a Dichotomous Key?
Dichotomous Key of Transportation Vehicles
Vehicles with wheels:
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:
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:
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:
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:
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, ap Unicycle, skates
bike, car
Dichotomous Key of Transportation Vehicles
Vehicles with wheels:
AIM: What is a Dichotomous Key?
AIM: What is a Dichotomous Key?
AIM: What is a Dichotomous Key?
Dichotomous Key of Animals
Animals with 4 legs
AIM: What is a Dichotomous Key?
Horse, gorilla, cow Ostrich, worm, shark, man, rooster
Dichotomous Key of Animals
Animals with 4 legs:
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 :
AIM: What is a Dichotomous Key?
Animals with tail:
Horse, gorilla, cow Ostrich, worm, shark, man, rooster
Horse, cow gorilla
Dichotomous Key of Animals
Animals with 4 legs:
AIM: What is a Dichotomous Key?
Animals with a tail:
Horse, gorilla, cow Ostrich, worm, shark, man, rooster
Horse, cow gorilla
Animals with utters:
Dichotomous Key of Animals
Animals with 4 legs:
AIM: What is a Dichotomous Key?
Ostrich, worm, shark, man, rooster
Animals with a tail:
Horse, gorilla, cow
Horse, cow gorilla
Animals with utters:cow horse
Dichotomous Key of Animals
Animals with 4 legs:
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
AIM: What is a Dichotomous Key?
Class Activity
AIM: What is a Dichotomous Key?
Homework:
INTERNET QUESTIONS
WRITE A PARAGRAPH SUMMARIZING
THE AIM USING THE VOCABULARY