Great Estimations Book Poster Image

Great Estimations



Learn the tricks up every mathematician's sleeve.

What parents need to know

Positive messages
Not applicable
Violence & scariness
Not applicable
Not applicable

Parents Need to Know

Parents need to know that this book offers positive, common sense lessons that build math awareness and quantity recognition. Younger kids will enjoy looking at the pictures and doing the simpler lessons; older kids and adults will appreciate the harder challenges.

User reviews

Parents say

Not yet rated
Review this title!

Kids say

Not yet rated
Review this title!

What's the story?

Beginning pages introduce the basic idea of making estimations and then offer increasingly difficult examples to train the eye to remember. The last part of the book teaches more advanced tricks of clump counting and boxing. Finally, the reader is challenged to look for and solve estimation puzzles wherever they go.

Is it any good?


This common sense, clearly written book proves that math can be fun and offers entertaining, invaluable lessons that will make any reader feel more secure in the world of numbers.

Learning to make strong guesses about numbers and quantities is just about the most important skill any mathematician can learn. But figuring out a number that makes sense can be overwhelming unless you know a few tricks. GREAT ESTIMATIONS by educational writer Bruce Goldstone helps take the mystery out of guessing. Readers will feel more comfortable estimating as they turn each vibrantly illustrated page and learn clever but simple techniques for coming up with answers that make sense.

Beginning with a cover jumbled with jelly beans, the reader is led through progressive lessons with a question, a statement, and a hint or two on each set of pages. Engaging examples including collections of toys, candies, coins, seeds, beans, doll shoes, and people in a pool. 

Families can talk about...

  • Families can talk about each page and the lesson it offers. What is an estimation? How does it differ from a real number? How can you train your mind and your eye to make a good guess when you are trying to figure out how many jelly beans are in the jar or elbows in a box of macaroni? Practice clumping or box counting. Which works best for you? Can you think of other techniques that might help you make good estimations? Apply what you've learned when you go on drives, walks, or to the supermarket. Make a point of always guessing before you count.

Book details

Author:Bruce Goldstone
Illustrator:Bruce Goldstone
Book type:Non-Fiction
Publisher:Henry Holt & Company, Inc.
Publication date:August 22, 2006
Number of pages:32
Publisher's recommended age(s):4 - 7

This review of Great Estimations was written by

Common Sense Media's unbiased ratings are conducted by expert reviewers and aren't influenced by the product's creators or by any of our funders, affiliates, or partners.


Our star rating assesses the media's overall quality.

Find out more

About these links

Common Sense Media, a nonprofit organization, earns a small affiliate fee from Amazon or iTunes when you use our links to make a purchase. Thank you for your support.

Read more

About Our Rating System

The age displayed for each title is the minimum one for which it's developmentally appropriate. We recently updated all of our reviews to show only this age, rather than the multi-color "slider." Get more information about our ratings.

What parents and kids say

See all user reviews

Share your thoughts with other parents and kids Write a user review

A safe community is important to us. Please observe our guidelines

There aren't any reviews yet. Be the first to review this title.


Did our review help you make an informed decision about this product?