April is invention month. "We're going to make our own inventions," says Ms. Rooney, "and work together in groups." Though Emily Arrow knows it's important for each group to think, listen, and share, she still wishes she were the leader of her invention group. Linda Lorca, the bossy leader, can't get anyone to cooperate. "Snaggle doodles," Emily says. If the group doesn't come up with an idea soon, they'll be the worst group in the class. Meanwhile, Emily is also busy thinking of a wedding present for Ms. Vincent, the student teacher. The wedding is only a few days away. Emily has a lot to do. Can she and her group learn to work together in time?