Monday, March 4, 2019

1-2 Nim (Videos included)

I don't fully understand the name of this game called 1-2 Nim, but I understand how much my mathematicians enjoy it. I also understand how much it helps develop not only their mathematical minds, but their love for math.

(I learned it from Dan Finkle who provided a math games webinar on Christina Tondevold's Build Math Minds site. Please consider following her work if you're an elementary math teacher.)

• Grab a partner and a collection of counters. (I use cubes, but it really doesn't matter.)
• A player has to take 1 counter on his turn but can take 2 if he chooses.
• The player who takes the last counter wins.

Ways to change it up:

• Use more counters.
• Play 1-2-3 Nim. (The player can take 1, 2, or 3 counters on his turn.)
• Poison: The player who takes the last counter loses.
• Use a ten frame. The player who puts the final counter in the ten frame wins.

My kids have the stamina to play this game and its variations for a good while. Though simple to play, it's so engaging. It's easy and fun enough for kids to teach family members at home too.

Here are two videos of 1-2-3 Nim in action. Enjoy. :)

Give Nim a shot, and don't be surprised if a little person beats you a time or two! (Not that I would know anything about that.)