To find out how many rubber duckies are on the cover of this book you could count each one―or you could estimate. An estimate is a good guess. Are there more than ten rubber ducks? Are there fewer than a thousand?

Those estimates are not very accurate. A great estimate is close to the real number. Filled with fun, creative examples, this companion to Great Estimations will show you how to train your eyes and your mind to make really great estimations about length, volume, area, and much more. This title has Common Core connections.

About the Author

Bruce Goldstone is the author of several books, including 100 Ways to Celebrate 100 Days, Great Estimations, and The Beastly Feast. He has worked in educational publishing for nearly twenty years. Growing up in Ohio, Bruce fell in love with reading and the magic of words, and even back then he knew he wanted to be a writer. Books have always been an important part of his life, from buying used paperbacks to his first job, shelving books as a library page. He now lives in New York City with a plethora of pets including one dog, three parakeets, and an aquarium.

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