Greater Estimations


Kirkus Reviews, Starred Review
Another sure-fire winner…. Don’t underestimate this one’s value.


The New York Times Book Review
…[Goldstone] reveals all the tricks for [estimating] swiftly and accurately: eye training, clump counting and so on. Is that cool? I don’t know. But it’s empowering—dare I say fun?—to have an instinctive grasp of really big numbers.


Children’s Literature
The information contained in this book is masterfully presented so that a child could read it and then actually apply each of the strategies for estimation.


School Library Journal
He does an exceptional job of breaking down the process so that even early elementary students can comprehend it.

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About the Book

I love the quality of the digital photos, but I am pretty old-fashioned when it comes to the set-ups. For the cover of Greater Estimations, I envisioned an army of rubber ducks marching toward the reader. I think most people these days would have taken a picture of one duck and then used computer software to cut and paste the duck army. But I think you can usually tell when an artwork is made that way, and I prefer the real thing. So I bought all those ducks and set them up on a table. It took about five hours. (Of course, sometimes computer artwork does come in handy. I also wanted to include a picture of 10,000 ducks in Greater Estimations and there was no way I was going to buy that many ducks!)


Greater Estimations gives readers more chances to practice their estimating skills. It adds some new twists, like measuring length, weight, area, and volume. It also tackles some really big numbers, like the number of hairs on a cat or blades of grass on a football field. Buy most importantly, it includes a very cute picture of my dog, Aggie.


Oh, speaking of hairs on a cat—I’d like to shout out a huge THANKS to my Aunt Sue Cotter, who is an exceptional veterinatian and helped me immensely with estimating about how much skin a cat has. I forgot to thank her in the book credits, about which I still feel quite sheepish. Sorry, Sue, and once again, Thanks!

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