Grade 4

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! These enormous vehicles were built to be one thing--gigantic! Dazzling photos combined with fascinating information… More →

What caused World War I, and why was it important? This hi-lo title takes a close look at the Great War, from causes and important battles to the homefront and the war's lasting impact.… More →

Though it ended nearly 80 years ago, World War II looms large in American consciousness. In this hi-lo overview of the conflict, young readers can learn about the major players, important… 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 →

Are you ready for the smackdown? Growing readers can learn about professional wrestling superstars, their moves, and their victories in this low-level series. From signature moves to final… More →

Whether it's snowboarding down a huge mountain or surfing a massive wave, X-Moves will have readers on the edge of their seats. Each book in the series showcases some of the most incredible… More →

In X-Rays, readers will learn about the science and technology behind the discovery and development of X-rays and CT scans. Vibrant, full-color photos and carefully leveled text will engage… More →

As gripping as the screeching winds from a ferocious storm, X-treme Disasters That Changed America recounts the destructive force of some of America's worst natural disasters. Told in a… More →

Did you know the yo-yo was invented in Ancient Greece? Or that people in China have used chopsticks to eat with for more than 4,000 years? Learn these cool facts and so much more in this… More →

Have you heard of the dam so massive it actually added a fraction of a second to every day? Or seen the bridge that literally disappears below the ocean? Explore these extreme feats of… More →