The Librarian Who Measured the Earth

Author: Kathryn Lasky 

Synopsis by the author/publisherThis colorfully illustrated biography of the Greek philosopher and scientist Eratosthenes, who compiled the first geography book and accurately measured the globe’s circumference, is just right for budding mathematicians, scientists, historians, and librarians! Filled with fascinating details about Eratosthenes’s world (and in print since 1994), kids are sure to flip through the pages time and again.

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What’s Your Angle, Pythagoras?

Author: Julie Ellis

Illustrator: Phyllis Hornung

Synopsis by the author/publisher

Children can test their math skills and learn the Pythagorean Theorem alongside young Pythagoras in this STEM adventure.  Pythagoras’ curiosity takes him from Samos to Alexandria, where he meets a builder named Neferheperhersekeper, who introduces him to the right angle. While building, Pythagoras uses geometry to learn how to measure angles and discovers all he needs to know about right triangles. With playful puns and wordplay Ellis creates the perfect STEM/STEAM resource for introducing young readers to a fundamental mathematical equation. A fun and accessible way to get young minds asking “what’s your angle?”.

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Pythagoras and the Ratios: A Math Adventure

 Author: Julie Ellis  

Illustrator: Phyllis Hornung Peacock 

Pythagoras and his cousins want to win a music contest, but first they must figure out how to play their instruments in tune, something that’s never been done before.
While trying to fix the problem, Pythagoras makes an important discovery–notes that sound pleasant together have a certain mathematical relationship. When Pythagoras applies this ratio to his cousins’ pipes and lyres, the result is music to the ears.

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The Boy Who Loved Math: The Improbable Life of Paul Erdos

Author:  Deborah Heiligman 

Illustrator: LeUyen Pham 

Synopsis by the author/publisher

Most people think of mathematicians as solitary, working away in isolation. And, it’s true, many of them do. But Paul Erdos never followed the usual path. At the age of four, he could ask you when you were born and then calculate the number of seconds you had been alive in his head. But he didn’t learn to butter his own bread until he turned twenty. Instead, he traveled around the world, from one mathematician to the next, collaborating on an astonishing number of publications. With a simple, lyrical text and richly layered illustrations, this is a beautiful introduction to the world of math and a fascinating look at the unique character traits that made “Uncle Paul” a great man.

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Blockhead: The Life of Fibonacci

 Author : Joseph D’Agnese  

Illustrator: John O’Brien 

Synopsis by the author/publisher

When Leonardo grew up and traveled the world, he was inspired by the numbers used in different countries. Then he realized that many things in nature, from the number of petals on a flower to the spiral of a nautilus shell, seem to follow a certain pattern. The boy who was once teased for being a blockhead had discovered what came to be known as the Fibonacci Sequence!

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