When they hear that their teacher, Mr. G., is cutting off his ponytail and picking up a suit, the students jump to the wrong conclusion, until Katie finds out what is really happening when she turns into Mr. G.

After Katie decides to go to Suzanne's all-girl sleepover party instead of riding the new rollercoaster with Jeremy, Jeremy and the other boys in their class declare that all girls have cooties, so Katie tries to ease hurt feelings.

Katie wished she could be someone else. But she never thought it would come true, until one day she became the "lunch lady".

Jenny tries to find out the identity of a secret admirer who has been sending her notes, but is distracted from her mystery when her friends Felicia and Rachel become entangled in a big argument.

"A chicken hops a ride to school to see what the humans do there all day and unlocks the superpowers of math and science, which she uses to save the coop"--

Jenny McAfee feels totally prepared to start sixth grade with her best friend, Addie Wilson, by her side, but when they meet at their lockers, Addie has other plans which don't include Jenny.

When Addie's promise to get superstar pop singer Cody Tucker to sing at the annual winter dance turns out to be a lie, Jenny must come to her rescue.

George and his classmates are excited to learn that their teacher, Mrs. Kelly, will appear on a televised dance show, but when they go to see a taping, the Super Burp proves it is not camera-shy.

After her feats of math and science derring-do, Chirpy is the talk of the coop. So when the chicks face a new problem—Clucky greedily chomping down on all the chow—they turn to their Great Mathemachicken for a solution. Wandering off to think, she meets Quackers, a very curious duck, who has a lot of his own questions. Unfortunately, Chirpy doesn’t have answers. But she knows the best place to find them—school! So the pair hops on the bus...

George's magic burps threaten to ruin not only his team's chances of winning a class field day, but also his audition to be the fourth-grade sports reporter for his school's new closed-circuit television station.