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              I have used Geoboard for iPad to 
				visualize squares inside squares and check out a variety of 
				conjectures. 
				 
				Download on the App Store: Geoboard, by The Math Learning Center - Clarity Innovations. 
				 
				
										Geoboard, by The Math Learning Center 
										
										The Geoboard is a mathematical manipulative tool for exploring a variety of 
		basic concepts in plane geometry introduced in the elementary and middle grades. Learners stretch bands around pegs to form line segments and polygons and make discoveries about perimeter, area, angles, congruence, translation,
rotation,
reflection,
similarity,
scaling,, fractions, and more.  
		 
		This virtual version of the manipulative is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use iPod Touches, iPhones, or iPads. 
  
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