education

What Is a Googol?

What Is a Googol?

Big numbers Sahara Desert (Photo credit: Wikipedia) A nine-year-old came up with the name googol when his mathematician uncle, Edward Kasner, asked for help in naming this new number. The name was introduced in Kasner’s 1940 book, “Mathematics and the Imagination.” The search engine company, Google, took its name as a play on the name for the number, […]

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What Is Infinity Plus One?

What Is Infinity Plus One?

Crossing the Street This photo is of Wikis Take Manhattan goal code R9, Children/Families, crossing street. |} (Photo credit: Wikipedia) One-to-one correspondence Materials Children Hands Street to cross Instructions Ask each of your grandchildren to take your hand when you cross the street Ask them if you have enough hands for each child If you […]

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Tessellating Brownies

Tessellating Brownies

Tessellating Brownies Tessellation If you look at a tile floor, you will see that all the edges of tiles sit next to each other, with no gaps. This is tessellation, fitting polygons – shapes with at least three sides – next to each other in a pattern. A football (or soccer ball) icon. (Photo credit: […]

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How Many Coins Fit in A Ziploc® Bag?

How Many Coins Fit in A Ziploc® Bag?

How Many Coins Fit in A Ziploc® Bag? Benchmarks Marker, U.S. National Geodetic Survey marker embedded in a large rock in front of the Noroton Fire Department, Darien (Photo credit: Wikipedia) A benchmark is a small part of a whole used to help estimate the whole or a standard by which other things are judged. […]

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