## Archive for January 5, 2014

### Not Good at Math Games

My wife and I often host Tot-Tails, a neighborhood party where all parents with tots gather to have cocktails while our kids play with one another. It’s a fun time, but at the end of these evenings, we often have parents who are not in great shape for the bedtime routine that will follow, especially since many of the tots have consumed a greater-than-recommended amount of sugar.

We hosted such a party on New Year’s Eve.

At the end of the night, most of the kids were in whirling-dervish mode, hopped up on artificial sweeteners and flying through our house at warp speed. As host, I felt responsible to quiet them before sending them home to bed, so I invited all the kids to sit on the floor in our living room and play a game with me.

I asked Alex and Eli to explain one of our favorite games, which has the following rules:

• On the count of 1-2-3, each person “throws” any number of fingers from 0 to 5. (Like Rock-Paper-Scissors, where players throw rock, paper, or scissors.)
• The winner is the person who throws the least fingers that is not thrown by anyone else.

For example, if two players throw 3 fingers, they cancel each other out, and a third player who throws 5 fingers would win.

A round of Low-Sham-Bow. The player who threw 5 fingers wins, because the two players who threw 3 fingers cancel each other out.

You may recognize this game as a variation of My Favorite Game, with the difference being that this game limits the user input to numbers 0‑5.

Folks who play Ultimate Frisbee use the alternative name Rochambeau (or Roshambo, or Row-Sham-Bow) for the game of Rock-Paper-Scissors. Similarly, my sons and I call this game Low-Sham-Bow, since a low throw wins.

I find Low-Sham-Bow to be preferable to Rock-Paper-Scissors when one person needs to be chosen from a large group. Rock-Paper-Scissors is a two-player game, so it’s a good game for couples to use when they disagree on where to have dinner; but Low-Sham-Bow can be played by any number of folks, so it’ a good game when five siblings are trying to decide who gets the last cookie in the jar.

So, the kids and I sat down to play the game.

The first round, five-year-old Stephen threw 2 fingers, while every other kid threw 0 fingers. I congratulated Stephen on his win, and I gave him a quarter.

This got the other kids’ attention.

We then played several more rounds, and most of the kids won a quarter legitimately. Those who didn’t win a quarter were given one “for being good players.”

The game served its intended purpose. By the end, all kids were reasonably calm, and the parents seemed to be grateful for my efforts.

As folks started filing out, four-year-old Leo showed me his quarter. “I got this for winning a game,” he said.

“I know,” I said.

He looked at my empty hands. “You don’t have a quarter,” he said, and then added, “You must not be very good at games.”

Ha-rumph.

The Math Jokes 4 Mathy Folks blog is an online extension to the book Math Jokes 4 Mathy Folks. The blog contains jokes submitted by readers, new jokes discovered by the author, details about speaking appearances and workshops, and other random bits of information that might be interesting to the strange folks who like math jokes.

## MJ4MF (offline version)

Math Jokes 4 Mathy Folks is available from Amazon, Borders, Barnes & Noble, NCTM, Robert D. Reed Publishers, and other purveyors of exceptional literature.