Dorothy Handelman

A girl has a terrible time getting along with her little brother, who is a pest, but she comes to appreciate him when she needs a playmate to keep her company.

Called to the principal's office, Brad remembers all the tricks he has played on his classmates and wonders who has turned him in.

Trouble arises between a brother and sister because she always wins the games they play, but then she discovers that she does not have to brag or win all the time.

Ted is embarrassed by his unusual grandmother but when she takes him to a ballgame and helps him catch a home run ball, he decides she's pretty cool after all.