From the creator of the Math Kids comes a new educational early reader series! Siblings Emily and Sam are always ready to learn new things. When they find a box turtle and decide to adopt it, they need to learn what to feed it and how to create a safe home for it. But just as they're getting the hang of caring for their new pet, it goes missing! Someone must have taken the turtle, but who? It's up to Emily and Sam to find out.

The Math Kids have set their sights on new club member Catherine Duchesne to help them win the upcoming Math Olympics. Although she has been quiet in class, she knows some really cool math tricks that are sure to help The Math Kids team. But when Catherine doesn't show up for school and Jordan, Justin, and Stephanie find out her father's been kidnapped, the group springs into action to help their new friend.

Special Agent Carlson gives the Math Kids a cryptic poem that was written by a dying bank robber. They'll need all their math skills to crack this case!

Fifth grade is off to a terrible start for the Math Kids. Jordan and Justin are in a different class from Stephanie and Catherine. Worse, they have Miller the Killer for math and he hates math! Even more troubling, Jordan witnesses Robbie, the class bully, in an angry confrontation with his father and wonders if Constable Colson might be doing more than yelling. People problems suddenly seem a lot more challenging than homework, but maybe with the right plan--and some math--the four Math Kids can find a way to deal with their classroom woes and make sure Robbie stays safe.

Tensions Rise Between the Math KidsWhen Stephanie finds out her soccer team has a tournament on the same day as the district math competition, an upset Justin offers her a choice: choose Math Kids or leave the club. Dismayed by his attitude, Stephanie quits and Catherine goes with her. With their club in shambles, the future of their friendships is further threatened by the news that Justin's dad has been offered a new job and wants to move his family to St. Louis.Jordan, Justin, Catherine, and Stephanie may face the permanent fracture of their friend group and a bleak end to their school year--unless they can come together to overcome some impossible situations.Problem solving skills apply to much more than homework in the latest addition to the Math Kids series

After a tough end to the school year, the Math Kids--Jordan, Justin, Stephanie, and Catherine--take ajet to London for an exciting summer vacation. But between exploring the city and seeing the sights,they're quickly drawn into investigations of terrorist activity.Authorities are on high alert because of threats to landmarks across the city. But there's something oddabout the messages. Working alongside Bobby, a police officer tasked with being their trip guide, thekids must uncover the true purpose of a mysterious online message board or risk being sent homeearly.With their vacation plans and the safety of London at risk, the Math Kids are in for their most complexcase yet!

Hidden cameras, secret operations, and new math concepts await in the Math Kids' ninth adventure! Justin has been accused of stealing from the comic book shop! To earn back the trust of his parents and the store manager, he'll have to work at the shop for four whole weekends. And that puts a damper on his plans to play video games and hang out with fellow Math Kids, Jordan, Catherine, and Stephanie. With the end of summer approaching, the four friends realize that finding proof of Justin's innocence is their only way to save Justin's good name. To get it, they'll need to uncover who really stole the comics. Their primary suspects are the two older boys who accused Justin, but catching them red-handed will require more than just teamwork. Solving this problem will require knowledge of proofs and patterns, and if the Math Kids aren't successful, it won't be just Justin's reputation at risk.