Grade 4

When Petty Potts turns up on the beach, Josh and Danny decide to "borrow" her new S.W.I.T.C.H. spray—the formula that will turn them into turtles! A squirt and a spritz later, the boys cut… Read More →

The Tuskegee Airmen were the first African American combat pilots in US military history. Ride along with these brave pilots on the dangerous military missions that changed the course of history. Read More →

It's a quiet Christmas Eve. The snow is fresh and white, the kids are tucked in and dreaming, and even the mice are snug in their homes. But wait—what's that clatter? This classic Christmas… Read More →

Do you know what pirates look like? Where do they go? What do they do? Why? In this story, there is a good pirate called Smiler, who has a parrot called Stickybeak. They play a clever trick… Read More →

Tyler "Ninja" Blevins is a gaming superstar! This famous streamer knows what it takes to be the best. Find out how he went pro, how he rose to the top, and what he might do next. Read about Read More →

Each year, typhoid fever affects up to 20 million people. Uncover what causes the infection and the fight against it with water treatment and vaccination. Dive deep into the Deadly Diseases Read More →

Typhoon Holidays is about the times school is out because of severe typhoons in Taiwan. Every summer there are four to five typhoons in the country. Read More →

Which animal's head is shaped like a shovel and covered in bumps? Did you know two animals have wiggly worm-like flesh to attract prey? Some animals are pretty ugly! Read More →

"[Un] llamado para que las niñas rechacen las limitaciones impuestas por los demás sobre ellas y sus sueños."—excelente, The Horn Book Magazine "Una vez soñé que nadaba / en el mar / y vi… Read More →

¡Cici está lista para todas sus actividades de campamento favoritas! Tiene todo planeado para el viaje con su papá, su hermana y su amiga Kendra. Pero con los nuevos poderes de hada de Cici,… Read More →

Thomas Paine believed that American liberty was not only possible but worth dying for. He was dissatisfied with his quiet life until he traveled to the American colonies. There, the cause of… Read More →

The outside layer of our planet is an active place. Earth's crust is always growing and changing. But do you know how Earth's crust forms? And what happens when its plates shift suddenly?… Read More →

For centuries vampires have been known for sleeping in coffins and using their fangs to drink the blood of their victims. Ancient mummies were said to be cursed to come after the living. The… Read More →

Ollie Iguana is the cleverest lizard at Riverside School of Innovation, and he's not about to let his paradise be overrun by humans! Ollie's hilarious and crafty attempts to reclaim his home… Read More →

The world's security and safety depend on the top-secret agents who carry out undercover operations. Make sure this force is on your radar! Inside you'll find these features: Real-Life… Read More →

When is a list also a poem? When it's a list poem! List poems can be funny or serious, rhymed or unrhymed. Award-winning author Brian P. Cleary explains how these types of poems work—and… Read More →

Prepositions do their job/in a way that just amazes—/Relating nouns and pronouns/to the other words and phrases. In this 20th anniversary edition of Under, Over, By the Clover, author Brian… Read More →

Have fun learning about language! In this fun-filled book, playful puns and comical cartoon cats combine to show, not tell, readers what prepositions are all about. Each preposition in the… Read More →

The ocean we know - the one we swim, fish and play in - is very different from the deep water far from land. The deep ocean has no light, and the water pressure is so great it can shatter… Read More →