The New York Times bestselling authors of Freakonomics offer a blueprint for an entirely new way to solve problems, whether your interest lies in minor lifehacks or major global reforms.

"What do you do with a problem? Especially one that follows you around and doesn't seem to be going away? Do you worry about it? Ignore it? Do you run and hide from it? This is the story of a persistent problem and the child who isn't so sure what to make of it. The longer the problem is avoided, the bigger it seems to get. But when the child finally musters up the courage to face it, the problem turns out to be something quite different than it appeared....

One, Two, Kat, and Four want to form a club so together they figure out how to make a sign saying what their club should be called.

Although she thinks she is helping with her cousin's birthday party, Lizzy's mathematical reasoning does not always add up.

Daniel Tiger and Miss Elaina learn to compromise when they want to do different things while playing together and receive Teacher Harriet's gentle encouragement to try to fix the problem themselves.

Peg's mom has given her and Cat five important letters to mail. "She says it's because we're growing up," says Peg. And sure enough, the height marks on the wall show that they're getting taller! But there's a problem: when they get to the mailbox, they find a very big dog sitting in front of it. How can they get around or behind this scary-looking canine to mail the letters? Or could it be that they're jumping to conclusions -- and the obstacle itself...

"When Max's parents leave the country without him, he must rely on his wits to get by, and before long he is running his own--rather unusual--business"--

Peg and Cat are in the bath. One, two friends in the bath. Peg and Cat do math in the bath!

Jesse has a problem when he does not keep his promise to Grandma, and help from the rest of the family only makes things worse.

"Suzy and Max are go-karting! Along the way, they learn about forces, energy, and materials. When their go-kart breaks down, will their science know-how help them win the race?"--Page 4 of cover.