Grade 4

Which was invented first, television or e-mail? Discover the answers in this fun and informative series that introduces students to world inventions. Designed in a question-and-answer format, More →

How old is the Colosseum in Rome? How long is the Great Wall of China? Readers will find these answers and more as they learn about the location, history, architecture, and special uses of… More →

Cough! Burp! Sniff! Our bodies make many sounds. But what do all these sounds mean? Explore the wild, wacky, and (sometimes) downright gross things our bodies do. From burps to coughs, scabs… More →

This series introduces readers to some of the most exceptional creatures of the animal kingdom. Includes fun facts and what makes them unique and interesting from other animals. Features… More →

From lions to polar bears, Wildlife Survival explores animals' natural habitats, physical characteristics, diet, life cycle, and behavior. Each book details how these amazing animals thrive… More →

Who was the first woman to win a Nobel Prize? Which woman's calculations helped NASA land the first astronauts on the Moon? Women in STEM introduces female math and science pioneers and… More →

Working Together helps readers prepare for and succeed in peer environments. Each title reinforces social and emotional learning (SEL) concepts while empowering readers, detailing how to… More →

More and more, robots are extending their reach in the working world. Today, these high-tech helpers are builders on assembly lines, surgical assistants, recon specialists, space explorers,… More →

Kids won't believe their eyes when they see these super-huge machines! From heart-stopping roller coasters that are as tall as a 45-story building to monster-size trucks with wheels that are… More →

Batter up! Young sports fans will love meeting the World Series' MVPs in this exciting series on our national pastime! From the New York Yankees' Derek Jeter, who hit the game-tying home run… More →

Whether scorching heat, frigid temps, stormy skies, or drenching downpours, weather plays a big role in our day-to-day lives. Watch the skies in this hi-lo adventure through the wild and… More →

Get ready to enter the ring with some of today's fiercest professional wrestlers! In Wrestling's Tough Guys, kids discover how wrestlers such as John Cena, Randy Orton, The Rock, and Triple H More →