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2000-2001 EPoWs
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In the Dark...
Marabyn
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1999-2000 EPoWs
Earthquake: 1 | 2 | 3 | 4
Llama: 1 | 2 | 3
Pi Machine: 1 | 2 | 3 | 4
Pirates...: 1 | 2 | 3 | 4
Rock, ...: 1 | 2 | 3 | 4
Scale...: 1 | 2 | 3 | 4
Search and Rescue
Shoelaces: 1 | 2 | 3

Customizable EPoWs
Graph Zooming

Pi Machine 3
Posted April 29, 2000 as a Math Forum EPoW

Introduction: In this part of the Pi Machine problem series, students experiment with the length of the radius of the inner circle so that half of the points fall inside the inner circle, and the other half fall in the outer circle.


Where's the Math: In this investigation, students make predictions and investigate ratios in geometry by using computer simulations.

Standards: Geometry, measurement, number & operations

Role of Components: The Pi Machine problem series uses AgentSheets to generate random points inside the circles. Swing slider allows students to change the radius, simple table displays data, and number entry allows students to select the total number of points in the simulation. Instructions are displayed and solutions are entered in a text entry box. Components are coordinated with Javascript.

 Try the applet!

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Sample submitted solutions:

(There were no submissions to this problem)

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Reflections: There were no submissions to this problem.

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