But the dot, though perfect in every way, only had eyes for a wild and unkempt squiggle. All of the line's romantic dreams were in vain, until he discovered...angles! Now, with newfound self-expression, he can be anything he wants to be--a square, a triangle, a parallelogram....And that's just the beginning!First published in 1963 and made into an Academy Award-winning animated short film, here is a supremely witty love story with a twist that reveals profound truths about relationships--both human and mathematical--sure to tickle lovers of all ages.

    Is there enough time? You have 3 shirts and 2 pairs of pants. Can you make 1 good outfit? Then you start to wonder: Why does everything have to be such a problem? Why do 2 apples always have to be added to 5 oranges? Why do 4 kids always have to divide 12 marbles? Why can't you just keep 10 cookies without someone taking 3 away? Why? Because you're the victim of a Math Curse. That's why. But don't despair. This is one girl's story of how that curse can be broken.

    How many stars were in the sky? A million? A billion? Maybe the number was as big as infinity. I started to feel very, very small. How could I even think about something as big as infinity? Uma can't help feeling small when she peers up at the night sky. She begins to wonder about infinity. Is infinity a number that grows forever? Is it an endless racetrack? Could infinity be in an ice cream cone? Uma soon finds that the ways to think about this big idea may just be . . . infinite.

    Each spread features an easy-to-understand scenario such as dice rolling, with questions about probable outcomes and simple explanations. In the vein of Great Estimations, this is a perfect book for getting across important math concepts in a fun way.

    "How long is a second?""A second is a hiccup--the time it takes to kiss your mom, or jump a rope, or turn around."The newest book by acclaimed picture-book creators Hazel Hutchins and Kady McDonald Denton explains units of time in imaginative terms children can understand: A second lasts as long as a hiccup; a week is seven sleeps; and a year is the time it takes to grown into new shoes! Any parent who's been asked, "How long is a minute?" or any kid who's wondered, "What does 'an hour' mean?" will enjoy this smart, simple, and surprising book.

    This extraordinary book collects animal information not available anywhere else—and shows all 30 roosting holes, all 200 spots, and, yes!, all 1,000 baby seahorses in eye-catching illustrations. A book about picturing numbers and considering the endlessly fascinating lives all around us, Lifetime is sure to delight young nature lovers.

    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.

    Lion and lizard, whale and wombat. Learn one wild fact about each animal. (Did you know that gorillas yawn when they are nervous?) Look carefully, because for each letter of the alphabet, one animal is pictured eight times. Why 8? Come inside and find out.

    Huge numbers are hard to comprehend. This book explains quantities in terms children can understand. For example, one million dollars could buy two full pizzas a day for more than sixty-eight years.

    Never fear, I have a hunchThere is a match for every bunch!"Greg Tang, a lifelong lover of math, shares the techniques that have helped him solve problems in the most creative ways! Harry Briggs's vibrant & inviting illustrations create a perfect environment for these innovative games. So open your mind-and have fun!"This...clever math book uses rhyming couplets... riddles...visual clues to help the reader find new ways to group numbers for quick counting...A winning addition!" --Kirkus

    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.

    As we dream with him, we are taken further and further into mathematical theory, where ideas eventually take flight, until everyone--from those who fumble over fractions to those who solve complex equations in their heads--winds up marveling at what numbers can do.Hans Magnus Enzensberger is a true polymath, the kind of superb intellectual who loves thinking and marshals all of his charm and wit to share his passions with the world. In The Number Devil, he brings together the surreal logic of Alice in Wonderland and the existential geometry of Flatland with the kind of math everyone would love, if only they had a number devil to teach them.

    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?

    Engaging, cartoonish animals from tigers to pangolins romp across the pages as the rhyming text bounces along: “Tails fluffy, / Tails stringy, / Scaled tails strong and—clingy!” Pull tabs, lift-able flaps, tufts of fur, and even a scratch-and-sniff skunk tail provide plenty of tactile surprises. Along the way, youngsters will learn about counting, opposites, and how animals use their tails. A tried and true tail-wagger!

    Round, curvy, pointy, or straight-shapes are all around us.With vibrant illustrations that highlight shapes in all their forms, this informative book reinforces the identification of circles, squares, crescents, diamonds, triangles, rectangles, trapezoids, and ovals while encouraging kids to pair shapes together to make new forms.