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.

    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.

    Her parents separated when she was young, and her mother insisted on a logic-focused education, rejecting Byron’s “mad” love of poetry. But Ada remained fascinated with her father and considered mathematics “poetical science.” Via her friendship with inventor Charles Babbage, she became involved in “programming” his Analytical Engine, a precursor to the computer, thus becoming the world’s first computer programmer. This picture book biography of Ada Lovelace is a portrait of a woman who saw the potential for numbers to make art.

    From I dressed in linen to 10 making baskets, this rollicking verse shows Wampanoag and Pilgrim friends preparing for and sharing a wonderful Thanksgiving feast.Vibrant illustrations from critically acclaimed artist Mark Buehner only add to the fun! Count up the rabbits, squirrels, and other small creatures tucked into each scene. Find the bold turkey on every page ... and for the very sharp of eye, there are all sorts of surprises hidden in the art!An entertaining story for children to read again and again, This First Thanksgiving Day will warm and enrich everyone's holiday season!

    He does not have any spots, you see! He keeps seeing spots wherever he goes… One spot, two spots, three spots, Four! And many, many, many more. “Where did you get your spots?” he asks. Join Andrew as he discovers how the ladybug, the leopard and the owl came to have spots and discovers that spots often appear when you are least expecting them! This is a wonderful rhyming picture book for children of all ages.

    A funny, entertaining introduction to Ben Franklin and his many inventions, including the story of how he created the "magic square." A magic square is a box of nine numbers arranged so that any line of three numbers adds up to the same number, including on the diagonal! Teachers and kids will love finding out about this popular teaching tool that is still used in elementary schools today!

    Brenda Sexton's wild and wacky illustrations add layers of witty fun to LaRochelle's clever game. These wacky equations don't add up…or DO THEY?1 goat + 1 unicorn = 3 horns!1 set of triplets + 1 set of twins = 5 babies!1 duet + 1 quartet = 6 musicians!1 ant + 1 spider = 14 legs!1 century + 1 decade = 110 years!

    But soon a trumpet makes a duet, a french horn a trio, and so on until the entire orchestra is assembled on stage. Written in elegant and rhythmic verse and illustrated with playful and flowing artwork, this unique counting book is the perfect introduction to musical groups. Readers of all ages are sure to shout “Encore!” when they reach the final page of this joyous celebration of classical music.

    Perfect for your Kindle app for iPad - will show in color on the iPad,Illustrations will show in black and white on regular Kindle.

    Frizzle's birthday and the class tries to bake a cake but winds up inside it, learning about mixtures and reactions that occur when ingredients are put together.

    Sometimes you need to see things for yourself—at their actual size.

    It teaches all the 0's -9's times tables and has sold over 100,000 copies. Originally published in 1992, Times Tables the Fun Way has been a popular choice for schools and parents. To teach 6x6, for example, the story tells of twin sixes who go off to visit cousins across the desert. They get low on water and become very thirsty sixes, which sounds like 36, the answer to 6x6. Students love learning with the colorful pictures and accompanying songs.

    In school she quickly skipped ahead several grades and was soon studying complex equations with the support of a professor who saw great promise in her. But ability and opportunity did not always go hand in hand. As an African American and a girl growing up in an era of brutal racism and sexism, Katherine faced daily challenges. Still, she lived her life with her father’s words in mind: “You are no better than anyone else, and nobody else is better than you.” In the early 1950s, Katherine was thrilled to join the organization that would become NASA. She worked on many of NASA’s biggest projects including the Apollo 11 mission that landed the first men on the moon. Katherine Johnson’s story was made famous in the bestselling book and Oscar-nominated film Hidden Figures. Now in Reaching for the Moon she tells her own story for the first time, in a lively autobiography that will inspire young readers everywhere.

    A might be for apple, but it's also for aisle and aeons. Why does the word "gnat" start with a G but the word "knot" doesn't start with an N? It doesn't always make sense, but don't let these rule-breaking silent letters defeat you!This whimsical, funky book from Raj Haldar (aka rapper Lushlife) turns the traditional idea of an alphabet book on its head, poking fun at the most mischievous words in the English language and demonstrating how to pronounce them. Fun and informative for word nerds of all ages!

    Each book uses humorous illustrations to depict the sometimes dark and horrific side of life during important eras in history.