Whose S ope is it Anyway? - PowerPoint PPT Presentation

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Whose S ope is it Anyway?. Created by Brian Domroes. Which Animal is Faster?. Give reasons to support your answer. Rate: Definition and Examples. A rate is a ratio comparing two different units Examples: Dollars/week Miles/hour Beats/second. Cat and Mouse Simulation.

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Whose S ope is it Anyway?

Created by Brian Domroes


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Which Animal is Faster?

Give reasons to support your answer.


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Rate: Definition and Examples

  • A rate is a ratio comparing two different units

  • Examples:

    • Dollars/week

    • Miles/hour

    • Beats/second


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Cat and Mouse Simulation

What do graph lines really mean?


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Go to www.explorelearning.com

Type in “Cat and Mouse”

Cat and Mouse


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Click on “Launch Gizmo”


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Play with the Variables


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Exploration Activity Reviewed

  • The line moves up the y axis 3 spaces.

  • Make the cat go as fast as possible.

  • Yes, if it has enough of a head start.

  • Parallel lines = same slope = same speed.


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1 second

7 feet

Exploration Activity Reviewed

5.


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Exploration Activity Reviewed

6.The intersecting lines shows where the cat catches the mouse.

  • 20 feet

    8.The more vertical the line, the faster the animal.


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Exploration Activity Reviewed

9.

What are your observations?


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.

.

Exploration Activity Reviewed

10.


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Cheetah Chase


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Warthog and Sable


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Impala and Hare


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Interpreting the Graph


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Top Speed of the Cheetah and its Prey


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Look for points at exact coordinates


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y

x

Align the triangles appropriately


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y

x

130 feet in

2 seconds


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Answers Reviewed


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y

x

360 feet in

8 seconds


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Answers Reviewed


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y

x

180 feet in

2 seconds


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Answers Reviewed


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y

x

420 feet in

4 seconds


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Answers Reviewed


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y

x

200 feet in

4 seconds


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Answers Reviewed


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Answers Reviewed

  • The change in y compared to change in x.

  • The Impala is 2nd fastest.

  • The Sable and the Warthog.


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Revisit the Original Question


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The End


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