education
The Monty Hall Problem
The Monty Hall Problem Probability: Dependent Illustration for Monty Hall problem (Photo credit: Wikipedia) When the television game show, “Let’s Make a Deal,” first started, it was hosted by Monty Hall. It originally aired from December 30, 1963 to December 27, 1968, then in syndication off and on until 1991, with Hall as host. In 2001, Let’s Make […]
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Pizza Triangles
Pizza Triangles If you add up all three angles in a triangle, the angles at the tips, you will get 180 degrees. Pizza Slices from Sofia’s (Photo credit: hicharice) Have you ever heard someone say, “You did a complete 180 on that!” They mean that you turned around in the exact opposite direction. Imagine you are standing […]
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Mobius Strip: Twist It!
Mobius Strip: Twist It! Sometimes it is not easy to predict what will happen when you start cutting. Materials Rectangular paper, like notebook paper or typing paper Tape Scissors Pencil Instructions Cut four long, thin strips from the paper, each about an inch-and-a-half wide Mark the ends of each strip A and B on one […]
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Equivalent Fractions: Is It Fair?
Equivalent Fractions: Units Stacks of US quarters and pennies (Photo credit: Wikipedia) Equivalent fractions are fractions that are equal in value to each other. As a knife is used in this activity, an adult should supervise or cut the food. A common practice for deciding if something is fairly divided or not is to offer the other party, […]
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