Division by Zero
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Dave Richeson  
A blog about "math, puzzles, teaching, and academic technology." Posts, which date back to September of 2008 and sometimes introduce original applets, have included "Volumes of ndimensional balls," "Albrecht Dürer's ruler and compass constructions," "Mathematical surprises," "Carnot's Theorem," "Pittsburgh Steelers logo using parametric curves," "What is the difference between a theorem, a lemma, and a corollary?" and "Why do mirrors reverse right and left but not up and down?" and "What shape are the golden arches?" Richeson, the author of Euler's Gem: The polyhedron formula and the birth of topology, chairs the Department of Mathematics and Computer Science at Dickinson College.  


Levels:  Middle School (68), High School (912), College 
Languages:  English 
Resource Types:  Problems/Puzzles, WebBased Discussions, Web Interactive/Java 
Math Topics:  Basic Algebra, Patterns/Relationships, Calculus (Single Variable), Calculus (Multivariable), Discrete Math, Dynamical Systems, Euclidean Plane Geometry, Transformational Geometry, Topology 
Math Ed Topics:  General Programs/Approaches, Technology in Math Ed 
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