Dichotomous Keys
Presentation
•
Science
•
7th Grade
•
Hard
James Gonzalez
FREE Resource
8 Slides • 4 Questions
1
Branched Dichotomous Keys
2
But First... Quick Recap
3
Multiple Choice
1
2
3
4
4
Multiple Choice
physical features
weather patterns
environment
diet
5
Drawing Practice
As well as being useful for identifying unknown organisms you come across, Dichotomous keys can be used to draw and sketch things.
In your books, attempt to draw each vehicle on the next slide based off the given key.
6
7
What is a branching key
A branching key uses a tree diagram, with two clear choices at each step leading to TWO different answers/groups.
8
Example
9
Open Ended
What is the difference between a branching dichotomous key and the ones we made yesterday?
10
Let's Make One!
11
Draw
Brain Break - Draw Your favourite Ocean Animal
12
Your Turn
Create a BRANCHING Dichotomous Key on the provided sheet of the 'Mr Men' characters.
Branched Dichotomous Keys
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