Dogs don’t play tennis like people do. They’re good at chasing the ball, but then they’d rather chew on it than do anything else. That pup in the picture has only 1 ball, but another dog named Finley can hold 6 tennis balls in his mouth at once – a world record! Tennis balls are nearly 3 inches wide, so for people, even 1 would be a squeeze — and wouldn’t taste so good.

*Wee ones: *Can you count up the world-record tennis balls? Count out loud to 6.

*Little kids: *The 6th ball is the toughest to grab! If Finley gets the first 5 balls in just 2 minutes, but then it takes him 5 minutes to grab the last ball, how long does it take him in total? *Bonus: *If 2 human tennis players bring 10 balls to the court, but Finley sneaks away 6 of those, how many are left for the humans?

*Big kids: *If you line up those 6 3-inch tennis balls in a straight line, how long a line would that be in inches? *Bonus: *How many of those tennis balls would it take to make a 100-foot long line?

*Wee ones:*Count out loud: 1, 2, 3, 4, 5, 6.

*Little kids:*7 minutes.

*Bonus:*4 tennis balls.

*Big kids: *18 inches. *Bonus: *400 tennis balls. We can fit 4 of these 3-inch balls in one 12-inch foot, because 3 x 4 = 12. So 100 feet with 4 tennis balls per foot = 100 x 4 = 400.