When Benny and Mr. Alden are playing checkers, Benny moves a checker directly forward instead of diagonally. Also, some of the checkers on the board are directly next to each other instead of on the dark squares only.
Every day the kids where the same exact clothes, yet each day at the box car, the clothesline has different clothes on it.
When the kids all slide down the muddy hill during a rainstorm, when they reach the bottom, none of them have any mud on their clothes. You see them brushing themselves off, but what are they brushing off?
Dr. Moore says that Field Day features a "relay race," but it's just a normal foot race with individual runners.