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Math (X) - Ebook (X)

Sir Cumference and the Dragon of Pi

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When Sir Cumference drinks a potion which turns him into a dragon, his son Radius searches for the magic number known as pi which will restore him to his former shape.


Keywords: king, heir, geometry, math, quest, puzzles, dragon

My Even Day

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In this delightful, rhythmic sequel to One Odd Day, the young boy awakens to find that it is another strange day—now everything is even, and his mother has two heads! This time, a school field trip to the zoo is dealt with in an odd, but even-handed manner. And, like its predecessor, children will spend hours looking for all the hidden objects in the incredible art.

One Odd Day

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One Odd Day tells the humorous story of a young child who awakens to find everything around him is “odd.” He has three sleeves on his shirt, and his dog has five legs. Things are no better at school either when he stares at a calendar with only odd days. Will his odd day end when he goes to bed that night?

Sir Cumference and the First Round Table

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What would you do if the neighboring kingdom were threatening war? Naturally, you'd call your strongest and bravest knights together to come up with a solution. But when your conference table causes more problems than the threat of your enemy, you need expert help. Enter Sir Cumference, his wife Lady Di of Ameter, and their son Radius. With the help of the carpenter, Geo of Metry, this sharp-minded team designs the perfect table conducive to discussing the perfect peace plan. Thanks to Sir Cumference and the First Round Table, even the most hesitant will be romancing math.

Sir Cumference and the Great Knight of Angleland

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On a quest to earn his knighthood, Radius uses different geometry concepts to find and rescue a missing king.


Keywords: king, heir, geometry, math, quest, puzzles, knight

Sir Cumference and the Sword in the Cone

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King Arthur has issued a challenge. The first knight to find the sword, Edgecalibur, will be the next king. Sir Cumference, Lady Di of Ameter, and Radius help their friend, Vertex, find the sword.


Keywords: king, heir, geometry, math, quest, puzzles

Sir Cumference and the Isle of Immeter

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When young Per visits her uncle Sir Cumference, aunt Lady Di of Ameter, and her cousin Radius, they teach her how to play Inners and Edges. After Per finds a clue linking the game to the mysterious castle of the Countess Areana, she and Radius sail to the island of Immeter. There, they have to decipher cryptic clues while avoiding a sea serpent. To unlock the island's secret, Per has to figure out how to find the perimeter and area of a circle. Only then can she become Per of Immeter.


One Is a Drummer: A Book of Numbers

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This lively concept book shows that the world around us is filled with things to count. Three are the dim sum carts filled with yummy treats, eight are the candles on a birthday cake, and ten are the bamboo stalks growing in a garden. Many of the featured objects are Asian in origin, but all are universal in appeal. With brilliantly colored illustrations, an ear-pleasing text and an informative glossary, this truly multicultural book will make counting a fun part of every child's day!



Counting Coconuts

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Monkey has gathered a huge pile of tasty coconuts. Before he can enjoy them he must count them. He discovers counting in sets is the fastest way to complete the task.


Keywords: rainforest, animals, habitats, numbers

Counting by 2s Poem

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This TumbleMath poem teaches students how to count by 2s using multiplication strategies, thereby identifying even numbers. This will help build a foundation for skip-counting with higher numbers.

Hide and Seek

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Numbers 1 and 2 want to play a game of Hide and Seek! Help them count to 100!

Counting Envelopes

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Numbers 1 & 2 count and compare the number of envelopes they each have. Find out who has more!

What's Your Angle, Pythagoras?

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Young Pythagoras can't seem to stay out of trouble. Every time he tries to help, people get angry. What's a curious kid to do?


On a trip to Egypt, Pythagoras' curiosity helps him discover the secret of the right triangle. A clever introduction to the Pythagorean Theorem.

Monster Mash (MS)

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Dancing monsters and prancing goblins jump off the page in this funky counting book by designer Mimi Maxwell. Children of all ages will delight in identifying and adding the monsters that darken each successive page. The charming rhymes, coupled with the positive message that monsters in the night aren't so scary after all, makes this a book that will transcend the Halloween season.



Keywords: Halloween, monsters, rhyming, counting, scared

One Duck Stuck (MS)

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One duck is stuck in the muck. Can two fish, tails going swish, help? What about three moose, munching on spruce? Will four crickets, chirping in the thickets, be able to pull the unlucky duck out of the muck? With bright, spirited illustrations by Jane Chapman, this counting tale by Phyllis Root is a feast of sounds and numbers that will have young listeners scrambling to join the slippy, sloppy fun.



Keywords: duck, numbers, rhyming, wildlife, animals

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