Plants have not always existed on Earth. The first plants appeared in the ocean and were much like algae. It took millions of years for them to evolve into plants with leaves and branches.… More →

Help the Rainforest Rangers locate and count plant and animal species to determine if they are endangered or close to extinction. To do this, readers will need to add and subtract within a… More →

Meet rays on an ocean adventure beneath the waves! Readers will learn about physical characteristics, diet, and habitat. Simple callouts ask students to think in new ways, supporting… More →

Get on the move with this Unofficial Guide! Readers will learn how to use redstone to build advanced Minecraft structures such as automated doors and powered mine carts. Content is presented… More →

Step into the action of this legendary 13-day siege during the Texas Revolution through first-hand accounts. The History Perspectives series uses primary and secondary sources, along with… More →

Sixty-five million years ago, dinosaurs were wiped off the face of the Earth. Without the danger of being eaten by those scaly giants, mammals grew to enormous sizes. Take a closer look at… More →

Meet seahorses on an ocean adventure beneath the waves! Readers will learn about physical characteristics, diet, and habitat. Simple callouts ask students to think in new ways, supporting… More →

Millions of years ago, giant predators ruled the oceans. Some weighed as much as 70 tons. Others shredded their prey with 7-inch-long teeth. Dive into this book and learn more about these… More →