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Technology 
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Rectangles and Squares Activit...

Irrational numbers (Math 7) 
Java Applet 
Lesson Plan 

[1]

Students investigate the attributes of squares and rectangles including length of side, area and perimeter using an interactive web page (technology) and also geoboards (manipulative). After working t...
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Pythagoras' Mystery Tablet Pro...

Irrational numbers (Math 7) 
Java Applet 
Activity 

[1]

Students use an applet to compute the area of a square based on its side length. They then use this information to determine whether it is possible to get exact side lengths for certain areas.
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Pythagoras' Mystery Tablet Tea...

Irrational numbers (Math 7) 
Java Applet 
Lesson Plan 

[1]

Links to NCTM Standards, related activities, lessons, and other Web resources to use with the Pythagoras' Mystery Tablet activity
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Pythagoras' Mystery Tablet

Irrational numbers (Math 7) 
Java Applet 
Tool 

[1]

Try typing different side lengths as fractions or as decimals. Watch how this affects the computed area of the square at the bottom. How close can you get to the area values on Pythagoras' Tablet?
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Buffon's Needle

Irrational numbers (Math 7) 
Java Applet 
Tool 

[0]

Students experiment with a simulation to get an approximation of Pi.
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