Grade 4

Crash! Slam! Male rhinoceros beetles lock horns in a battle over a female. Ounce-for-ounce, they are the strongest animal on Earth! Learn more about this awesome animal with a mighty horn. More →

Action, humor, and creative characters fill the mind of Rick Riordan. He is best known for The Lightning Thief, which follows Percy Jackson's journey in a world based on Greek mythology.… More →

Blueberry Sue, famous TV chef, needs the help of Cook Town's child private eye, Riley Rye. With her dog, Deputy, Riley heads to the TV station to find out who stole Sue's pie recipe. Can she do it? More →

In this title, early fluent readers meet Riley, a girl who loves to swim and surf, as she learns about her respiratory system. Read along as Riley, her dad, and her doctor discuss how the… More →

The land of Primordia is in terrible danger! An evil force has turned tame dinosaurs against their human owners … and built up an army to take control of the country. Join dino-riding heroes… More →

Water floods through cities along coastlines and islands all around the world. And the rising water has already started pushing people from their homes. What on Earth is causing these rising… More →

In Rivers, early fluent readers learn about the geologic processes that create rivers around the world. Vibrant, full-color photos and carefully leveled text will engage young readers as they More →

In Road Maps and GPS, early fluent readers will learn about common map features, such as map keys and compass roses, as well as specific features of road maps and how we read them. Bright,… More →

For Roald Amundsen, a passion for adventure started early on. As a young boy he slept with the windows open even during frigid Norwegian winters to prepare himself for the life of polar… More →

The word Croatoan carved onto a post and the letters "CRO" scratched onto a tree. What do these two clues reveal about Roanoke's missing English colonists? Interested students can sort… More →

The possibilities are endless in the world of Roblox! This popular platform lets players make their own games, collect unique items, attend fun events, and connect with friends. But when did… More →

Robonauts have been built to be substitutes for astronauts. They are made to look and move much like humans so they can take over time-consuming or dangerous space work. This high-interest… More →