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Pythagoras and the Ratios: A Math Adventure Hardcover – Bargain Price, February 1, 2010

13 customer reviews

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Hardcover, Bargain Price, February 1, 2010
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--This text refers to an alternate Hardcover edition.

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Editorial Reviews

About the Author

Julie Ellis is the author of many books for children, including WHAT'S YOUR ANGLE, PYTHAGORAS, which she wrote as a way to show her daughter the uses of the Pythagorean Theorem. She lives in New Zealand. --This text refers to an alternate Hardcover edition.
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Product Details

  • Age Range: 8 and up
  • Grade Level: 3 and up
  • Hardcover: 32 pages
  • Publisher: Charlesbridge Publishing (February 1, 2010)
  • Language: English
  • ISBN-10: 1570917752
  • ASIN: B0064XDX4C
  • Product Dimensions: 9.7 x 8.9 x 0.4 inches
  • Shipping Weight: 12 ounces
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (13 customer reviews)
  • Amazon Best Sellers Rank: #1,593,346 in Books (See Top 100 in Books)

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Customer Reviews

Most Helpful Customer Reviews

8 of 8 people found the following review helpful By C. M. Woodworth on April 2, 2010
Format: Paperback Verified Purchase
This book is written in an interesting narrative, and couples the story with the math concept of ratio and proportion. Pythagoras gets distracted from his chores, as he works on how to construct musical instruments that will harmonize. The ending is very humorous! I had been searching for a book that addressed the topic of ratio, and this book serves the need well. A must add to a teacher's literacy library!
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6 of 6 people found the following review helpful By M. Heiss on October 14, 2011
Format: Paperback
This story introduces your children to the ancient Greek philosopher-mathematician Pythagoras in a way that isn't such a yawner as they get in the blurb in their math textbook.

But...

The story has more to do with the ratios of musical tones in a chord, than with ratios in real life.

In addition to this book, which will help your child remember the still-brilliant Pythagoras, try "Beanstalk: The Measure of a Giant" by Ann McCallum.
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1 of 1 people found the following review helpful By Kath's kudos on February 24, 2013
Format: Hardcover Verified Purchase
A very nice treatment of ratios that math students can easily relate to. Kid-friendly illustrations round out this book. Pair it with the Sir Cumference books.
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Format: Paperback Verified Purchase
I'm a Devotee of Susan Wise Bauer and this was one of the many wonderful choices she recommends in her book The Well Trained Mind. I've read the Story Of The World by Bauer to my kindergartner and she has a huge thirst for history. Her first comment was, "Pythagoras? That name sounds Greek." I owe that kind of thought process to Susan Wise Bauer. I would encourage parents of young children not to underestimate the things that they can understand and remember. Be bold! Pass up the potato chip brain food that is Dora the Explorer and introduce your small children to history and science and art and math. You will be amazed and delighted by the pleasure they find in it when you make it regularly available to them. There is plenty in this book that my six-year-old doesn't quite grasp yet, but she is very keen on the story of a boy who appears about her age and is doing all sorts of interesting and clever things with math. Everything you introduce to your young child's brain is Velcro ready for more information to attach to it.
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Format: Hardcover
Pythagoras and the Ratios by Julie Ellis carries young mathematicians and musicians back to Ancient Greece where an ever-curious Pythagoras enjoys solving problems so much that he often forgets to finish his chores. Young Pythagoras helps his cousin Octavius tune his new pipes by comparing them to his own and realizing that because they are twice as wide, they also need to be twice as long. Using the same ratios, he ties rocks of varying weight to the lyres of Reyna and Amara so that all of the cousins can play their instruments together for the first time in history.

The book is one of 19 in the Charlesbridge Math Adventures Series and does an excellent job of explaining the mathematical and musical principles of string and woodwind instruments. Ellis includes an historical note and some additional math and music explanations at the end to help the reader separate fact from fiction and make an "instrument" using six identical glasses containing various levels of water. Phyllis Hornung Peacock's warm cartoon illustrations, created in acrylic and water color pencil on cold-press watercolor paper, delightfully depict the general landscape and dress of Ancient Greece.

Although the story and dialogue are entirely fictitious, the introduction of Pythagoras as a mathematician is sound. The in-depth explanation of ratios, including diagrams and charts that correspond directly with the story, crystallize the concepts simply for students in grades 3-6. Issues of responsibility and working cooperatively are nicely interwoven into the story, which ends on a humorous note. Ellis strikes a nice balance of fun and education in this charming picture book.

Laurie A. Gray
Reprinted from the Christian Library Journal (Vol. XIV, No. 4, August 2010); used with permission.
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By Paulo Henrique Colonese on February 10, 2012
Format: Hardcover Verified Purchase
Um livrinho muito encantador. Ele ajuda a estabelecer relações entre a Aritmética e a Música (duas áreas da Matemática Antiga). E apresenta de modo simples o grande triunfo dos Pitagóricos que conseguiram modelar a harmonia musical por meio de relações numéricas... o que os levaria a acreditar que "Tudo É Número!".
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By Jennine Barrett on June 18, 2014
Format: Paperback Verified Purchase
Good way to add literary content to math...thinking of creating a reader's theater from it!
The last page/inside back cover containing information about Pythagoras is a great starting point for a special project on the Old Greek (Math) Guys, too.
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