A perfect introduction to mathematical concepts for young readers, written by a Newbery honor-winning author!This 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.

    Can you imagine that many of anything?The playful illustrations from New York Times–bestselling artist Isabel Greenberg and the friendly, straightforward voice of author Seth Fishman illuminate some of the biggest numbers in the universe—a hundred billion trillion stars—and the smallest—one unique and special YOU. Here is a book for story time, for science time, for math time, for bedtime, and all the times in between.Perfect for curious children, classrooms eager for STEM content, and readers who have devoured Ada Twist, Scientist and How Much Is a Million?

    The class rides into a whitelight pinball machine to learn about the dazzling wonders of color and light.

    Hop along to the Field and follow Lonely and Chalk Rabbit through a year as they try to cope with their fast expanding brood and handle a different seasonal challenge each month, from the cold of February to the wet of April and the heat of July.

    But taking care of his giant baby brother and brushing his teeth can be real challenges for the mouse-sized George.Ages 3-7

    Along the way, the children encounter all sorts of animals including elephants, lions and monkeys, while counting from one to ten in both English and Swahili. The lively, rhyming text is accompanied by an illustrated guide to counting in Swahili, a map, notes about each of the animals, and interesting facts about Tanzania and the Maasai people. A portion of the proceeds from the sale of each book will be donated to the African Wildlife Foundation, to aid their wildlife conservation and community building efforts in Tanzania. (Softcover) 32pp;10.25 x 10 inches

    Why are there pointy things stuck to a rose? Why are there hairs growing inside your nose? When her house fills with a horrific, toe-curling smell, Ada knows it’s up to her to find the source. What would you do with a problem like this? Not afraid of failure, Ada embarks on a fact-finding mission and conducts scientific experiments, all in the name of discovery. But, this time, her experiments lead to even more stink and get her into trouble!

    Children start to count long before they learn their ABC's, for they are constantly comparing and classifying things and events they observe around them. As they try to bring sense and order into what they observe, they are actually performing basic mathematical feats.In this book, Mitsumasa Anno, the creator of the brilliantly inventive Anno's Alphabet, invites young readers on another stimulating adventure of the imagination-this time into the world of numbers and counting. Gentle watercolor pictures show a landscape changing through the various times of day and the turning seasons, months and years, and the activities of the people and animals who come to live there. But the seemingly simple plan of the book is deceptive: look more carefully and you will see one-to-one correspondences; groups and sets; scales and tabulations; changes over time periods; and many other mathematical relationships as they occur in natural, everyday living. Just as our forebears developed our number system from observing the order of nature, the reader is subtly led to see and understand the real meaning of numbers.Look at this book and look again. Each time you do so, you will find another application of a natural mathematical concept that you had not noticed before.

    Full-color illustrations bring these concepts to visual reality.

    First published to wide acclaim in 2002, this eye-opening book has since become a classic, promoting "world-mindedness" by imagining the world's population -- all 6.8 billion of us -- as a village of just 100 people. Now, If the World Were a Village has been newly revised with updated statistics, several new activities and completely new material on food security, energy and health. By exploring the lives of the 100 villagers, children will discover that life in other nations is often very different from their own. If the World Were a Village is part of CitizenKid: A collection of books that inform children about the world and inspire them to be better global citizens.

    Perfect for visual learners! Simple, clear, practical, 26 Letters and 99 Cents teaches the most basic building blocks of life skills. Sit together with a child at home or in a preschool classroom and use coins and an alphabet sheet alongside this book to enjoyably teach ABCs and counting.In a starred review, School Library Journal said, “Children will enjoy manipulating money, numbers, and letters to correspond to the photographs in this book.”Readers can start from either side of the book. “Hoban’s crisp photo-essay presents images of upper- and lower-case letters beside objects beginning with that letter; reverse the book, and numerals are shown alongside coins that total that amount,” explained Publishers Weekly.

    He was such a daydreamer that people called him a blockhead.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!

    In 1707, young Sarah Noble and her father traveled through the wilderness to build a new home for their family. “Keep up your courage, Sarah Noble,” her mother had said, but Sarah found that it was not always easy to feel brave inside. The dark woods were full of animals and Indians, too, and Sarah was only eight! The true story of Sarah’s journey is inspiring. And as she cares for her father and befriends her Indian neighbors, she learns that to be afraid and to be brave is the greatest courage of all. The New York Times Book Review described this book as one “to be long remembered for its beautifully written simplicity and dignity.”

    When the Berenstain Bears go acrobatic in the hilarious Bears onWheels, pre-school children begin to relate words to pictures whilelearning about numbers and counting.

    "How many seeds are in a pumpkin?" Mr. Tiffin asks his class as they gather around the big, medium, and small pumpkins on his desk. Robert, the biggest kid, guesses that the largest one has a million seeds; Elinor, sounding like she knows what she's talking about, guesses the medium one has 500 seeds; and Anna, who likes even numbers better than odd ones, guesses that the little one has 22. Charlie, the smallest boy in the class, doesn't have a guess. Counting pumpkin seeds is messy business, but once the slimy job is done... well, you'll have to read and find out!