But do you know about the mathematical genius who made sure that Apollo 13 returned safely home?As a child, Katherine Johnson loved to count. She counted the steps on the road, the number of dishes and spoons she washed in the kitchen sink, everything! Boundless, curious, and excited by calculations, young Katherine longed to know as much as she could about math, about the universe.From Katherine's early beginnings as a gifted student to her heroic accomplishments as a prominent mathematician at NASA, this is the story of a groundbreaking American woman who not only calculated the course of moon landings but, in turn, saved lives and made enormous contributions to history.

    This Plus That proves that life's total experience is always greater than the sum of its parts.This book can be used to introduce equations or even some basic life lessons. Its warm and amusing tone invites readers to come up with their own life equations, and it makes a creative gift.

    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!

    You know the Super Soaker. It’s one of top twenty toys of all time. And it was invented entirely by accident. Trying to create a new cooling system for refrigerators and air conditioners, impressive inventor Lonnie Johnson instead created the mechanics for the iconic toy. A love for rockets, robots, inventions, and a mind for creativity began early in Lonnie Johnson’s life. Growing up in a house full of brothers and sisters, persistence and a passion for problem solving became the cornerstone for a career as an engineer and his work with NASA. But it is his invention of the Super Soaker water gun that has made his most memorable splash with kids and adults.

    A behind-the-scenes tour of Ehlert's books and book-making process - encouraging readers to explore their own creativity.

    Harry was a veterinarian. But he was also a soldier in training for World War I. Harry named the bear Winnie, short for Winnipeg, his company’s home town, and he brought her along to the training camp in England. Winnie followed Harry everywhere and slept under his cot every night. Before long, she became the regiment’s much-loved mascot. But who could care for the bear when Harry had to go to the battleground in France? Harry found just the right place for Winnie while he was away — the London Zoo. There a little boy named Christopher Robin came along and played with Winnie — he could care for this bear too! Sally Walker’s heartwarming story, paired with Jonathan Voss’s evocative illustrations, brings to life the story of the real bear who inspired Winnie the Pooh.

     If there was one thing James loved to do more than anything else, it was to be in the great outdoors watching his beloved feathered friends. In the fall of 1804, he was determined to find out if the birds nesting near his Pennsylvania home would really return the following spring. Through careful observation, James laid the foundation for all that we know about migration patterns today. Capturing the early passion of this bird-obsessed young man as well as the meticulous study and scientific methods behind his research, this lively, gorgeously illustrated biography will leave young readers listening intently for the call of birds large and small near their own home.

    What could be more perfect for an author/illustrator who has continually stripped away the mystique of architectural structures that have long fascinated modern man? With typical zest and wry sense of humor punctuating his drawings, David Macaulay traces the step-by-step planning and construction of both castle and town.

    

    Its coils took a walk…and so did Richard’s imagination. He knew right away that he had stumbled onto something marvelous. With the help of his wife, Betty, Richard took this ordinary spring and turned it into a plaything. But it wasn’t just any old trinket—it was a Slinky, and it would become one of the most popular toys in American history.

    Open 365 days a year and unrestricted by the constraints of physical space, each title in this series is organized into galleries that display more than 200 full-color specimens accompanied by lively, informative text. Offering hours of learning, this first title within the series "Animalium" presents the animal kingdom in glorious detail with illustrations from Katie Scott, an unparalleled new talent.

    Quirky full-color illustrations portray dozens of birds chatting about their distinctive characteristics, including color, shape, plumage, and beak and foot types, while tongue-in-cheek cartoons feature banter between birds, characters, and the reader ("Here I am, the noble spruce grouse. In a spruce grove. Eatin’ some spruce. Yep."). Interactive and enjoyable tips bring an age-old hobby to new life for the next generation of bird-watchers.

    He was the leader of a pack of wild dogs living off the land and barely surviving. But Nubs's life changed when he met Marine Major Brian Dennis.The two formed a fast friendship, made stronger by Dennis's willingness to share his meals, offer a warm place to sleep, and give Nubs the kind of care and attention he had never received before. Nubs became part of Dennis's human "pack" until duty required the Marines to relocate a full 70 miles away - without him. Nubs had no way of knowing that Marines were not allowed to have pets.So began an incredible journey that would take Nubs through a freezing desert, filled with danger tofind his friend and would lead Dennis on a mission that would touch the hearts of people all over the world.Nubs and Dennis will remind readers that friendship has the power to cross deserts, continents, and even species.

    Strong back matter empowers readers to learn about the history of timekeeping and time zones, and to explore where each of the characters lives on the world map. A distinctive educational tool, this picture book's warm, unique illustrations also make it a joy to read aloud and admire.

    Have you seen her?She's in New York. She's holding a torch. And she's in mid-stride, moving forward. But why?In this fascinating, fun take on nonfiction, Dave Eggers and Shawn Harris investigate a seemingly small trait of America's most emblematic statue. What they find is about more than history, more than art. What they find in the Statue of Liberty's right foot is the message of acceptance that is essential to an entire country's creation.