King Arthur was a good ruler, but now he needs a good ruler. 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 plan for peace. The first in Sir Cumference series, SIR CUMFERENCE AND THE FIRST ROUND TABLE makes math fun and accessible for everyone.

    professor Penny Chisholm to present the fascinating, timely story of fossil fuels.What are fossil fuels, and how did they come to exist? This engaging, stunning book explains how coal, oil, and gas are really "buried sunlight," trapped beneath the surface of our planet for millions and millions of years.Now, in a very short time, we are digging them up and burning them, changing the carbon balance of our planet's air and water. What does this mean, and what should we do about it?Using simple language and breathtaking paintings, Bang and Chisholm present a clear, concise explanation of the fossil-fuel energy cycle that began with the sun and now runs most of our transportation and energy use in our world.Readers will be mesmerized by this engaging fourth book in the award-winning Sunlight Series by Bang and Chisholm.

    Over 7,000 years ago Native Americans settled on the Nashua River, a beautiful and leafy valley. But the industrialization of nearby areas would lead to the deterioration of natural habitats. Each double spread examines brief periods of time when the river and surrounding areas teemed with wildlife. Lynne Cherry’s contrasting illustrations of the lush valley and the eventual polluted river deliver an astonishing look at our dramatic need for conservation efforts. This pictorial history of the river, edging towards a hopeful scene of modern-day descendants of both Native Americans and European settlers who come together to combat pollution and restore the beauty of the river, is an intelligent tale that shows young readers how they can do their part in taking care of the world around them, one river at a time.

    Much more than the "facts of life" or “the birds and the bees," Sex Is a Funny Word opens up conversations between young people and their caregivers in a way that allows adults to convey their values and beliefs while providing information about boundaries, safety, and joy.The eagerly anticipated follow up to Lambda-nominated What Makes a Baby, from sex educator Cory Silverberg and artist Fiona Smyth, Sex Is a Funny Word reimagines "sex talk" for the twenty-first century.

    Meet Viv, who has a new home and a new school by the sea and follow her as she finds her way in a new place and helps bring together a whole community to save the sea turtles of the South Carolina coast.• Explores various important themes like activism, philanthropy, volunteerism, and more• Features gorgeous watercolor illustrations that are colorful and engaging• Includes a "Letter to Young Activists" from the author as well as resources to learn more about sea turtles.• Meilo So is the esteemed illustrator of many books, including Water Sings Blue. Philippe Cousteau is an award-winning television host, producer, author, speaker, philanthropist, and social entrepreneur. Deborah Hopkinson is the author of many award-winning nonfiction books for young readersFans of Manfish and Water Sings Blue will also enjoy the inspiring storyline and stunning illustrations in Follow the Moon Home.• Great family and classroom read-aloud book• Books for kids ages 4-6 • Children's picture books for kindergarten through third grade

    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.

    It’s time. Today is the day he will once again cast himself into the air, spiral upward into the clouds, and bank into the wind.He wears a black band on his lower right leg and an orange flag on his upper left, bearing the laser inscription B95. Scientists call him the Moonbird because, in the course of his astoundingly long lifetime, this gritty, four-ounce marathoner has flown the distance to the moon—and halfway back! B95 is a robin-sized shorebird, a red knot of the subspecies rufa. Each February he joins a flock that lifts off from Tierra del Fuego, headed for breeding grounds in the Canadian Arctic, nine thousand miles away.  Late in the summer, he begins the return journey. B95 can fly for days without eating or sleeping, but eventually he must descend to refuel and rest. However, recent changes at ancient refueling stations along his migratory circuit—changes caused mostly by human activity—have reduced the food available and made it harder for the birds to reach. And so, since 1995, when B95 was first captured and banded, the worldwide rufa population has collapsed by nearly 80 percent. Most perish somewhere along the great hemispheric circuit, but the Moonbird wings on. He has been seen as recently as November 2011, which makes him nearly twenty years old. Shaking their heads, scientists ask themselves: How can this one bird make it year after year when so many others fall?  National Book Award–winning author Phillip Hoose takes us around the hemisphere with the world’s most celebrated shorebird, showing the obstacles rufa red knots face, introducing a worldwide team of scientists and conservationists trying to save them, and offering insights about what we can do to help shorebirds before it’s too late. Through prose, research, and images, Hoose explores the tragedy of extinction through the triumph of a single bird.

    J. Walker, who after years of adversity became the wealthiest black woman in the country, as well as one of the wealthiest black Americans, to Barack Obama, the country's first African-American president.With powerful illustrations by Shane Evans, this is a completely unique look at the importance and influence of African Americans on the history of this country.

    This biographical picture book about the Notorious RBG, tells the justice’s story through the lens of her many famous dissents, or disagreements.

    An attractive and informative volume for young stargazers.” —Kirkus Reviews“Manley’s writing swings gracefully between factual descriptions … and more lyrical observations: “All stars twinkle, but some stars also seem to wink at us... as if saying, ‘I know a secret.’ ” … Richly informative prose and intimate yet expansive art show a child’s contagious enthusiasm for the book’s subject. Includes a timeline of astronomical discoveries and suggestions for further reading.” —Publishers WeeklyDo you wonder if humansare the only beingswho wonderif they are alone in the universe?Our sun is a star.In the night sky are all kinds of stars, and orbiting those starsare planets like the ones in our own solar system.Could those planets have lifelike we do on Earth?Planet Earth is not too big, not too small, not too hot, and not too cold. It's just right.Our very own Goldilocks planet . . . .Follow a young girlas she explores these questionsin this gorgeous book about the wondrous searchfor another Goldilocks planet.

    They tried wild things like drinking a glass full of millipedes or putting some mustard on one's head.  Some of the cures worked, and some of them…well, let’s just say that millipedes, living or dead, are not meant to be ingested.Carlyn Beccia takes readers on a colorful and funny medical mystery tour to discover that while times may have changed, many of today’s most reliable cure-alls have their roots in some very peculiar practices, and so relevant connections can be drawn from what they did then to what we do now.

    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.

    These trusting, flightless, and beautiful birds—the largest and most unusual parrots on earth—have suffered devastating population loss.Now, on an island refuge with the last of the species, New Zealand’s National Kakapo Recovery Team is working to restore the kakapo population. With the help of fourteen humans who share a single hut and a passion for saving these odd ground-dwelling birds, the kakapo are making a comeback in New Zealand.Follow intrepid animal lovers Sy Montgomery and Nic Bishop on a ten-day excursion to witness the exciting events in the life of the kakapo.

    Fun and informative back matter takes the shape of an interview so that readers learn more right from the bird's bill. Ken Pak's lively illustrations, paired with Rita Gray's words, render a visual and sonorous picture book to be enjoyed by young naturalists.

    But, as adolescents are all too aware, there's a tremendous downside: When we do this to groups of people it can cause great harm. Here's a comprehensive introduction to the science behind stereotypes that will help young people make sense of why we classify people, and how we can change our thinking. It covers the history of identifying stereotypes, secret biases in our brains, and how stereotypes affect our sense of self. Most importantly, it covers current research into how science can help us overcome our biases, offering hope for a future where stereotypes are less prevalent and the world is more fair for everyone.Written by award-winning author Tanya Lloyd Kyi, this timely and hopeful book addresses the issues of discrimination, racism, sexism, ableism and homophobia and offers concrete suggestions on how to make change. It uses scientific inquiry and loads of relatable and interesting examples to explore these uncomfortable topics in age-appropriate and engaging ways. Chapters, sidebars and colorful illustrations break the text into manageable chunks. Besides the many ways this book could be used to inspire frank and in-depth discussions on the importance of addressing stereotypes and bias, it also links to many science and social studies curriculum topics. Back matter includes an extensive list of sources, suggestions for further reading and an index.