Onimod (Domino spelled backwards) is an interactive problem solver from Sam Sikes, found in his, Executive Marbles and Other Team Building Activities book. (And, there are lots of other fun things to do with dominos. For example, I pick a domino out of the 'hat' - it's a 2|5 combination. Everyone else picks too. Then, we pair up. I share things about myself equal to a number on my domino - I can say, 2, 5 or 7 (2+5=) things about myself. [What number did you choose and why? Good processing question.] My partner shares with me. After, we exchange dominos, then go off to find another partner to talk with...)
For the Onimod Challenges, you'll need a Double-Six set - 28 dominos. (If you don't have a set, I've included a downloadable one for you you below - just print, cut out and play.)
Here are the Challenges:
14 to 28 Players (Using 28 Dominos)
Give out 1 or 2 domino tiles to each player. Moving the dominoes end-to-end, while players are holding their domino(s), all 28 dominos can link in one long line. The dominos will also connect into a circle (the long line may end up working as a circle, or another solution is possible). Try solving the puzzle both ways.
10 to 21 Players (Using 21 Dominos)
First: Remove all the doubles - this includes the double zero. Give out one or two domino tiles to each player. The 21 dominos will all link into a circle.
7 to 15 Players (Using 15 Dominos)
First: Remove all the doubles, including the double zero, and all the dominos with a six. Thirteen dominos will always link in a line and leave two dominos (players) unlinked.
Extra Challenge: After finding the first solution, find another solution that includes the first two unlinked players (dominos) - in the second solution, two different players will be unlinked.
5 to 10 Players (Using 10 Dominos)
First: Remove the doubles, including the double zero, and the dominos with sixes and fives. The 10 dominos will always link into a circle.
I think a small group can work on the Onimod challenges in a platform like Mural.co or Google Jamboard (if you need help finding these, let me know).
First, you'll need to 'image capture' each of the 28 dominos (from the PDF download above) and then create (import each domino image) onto a Canvas (Mural) or Slide (Jamboard) with the number and kind of dominos required for the particular challenge. (I'd say hold off on the 15-domino challenge until we have an answer!? Or, not.....)
Then, get each group to the place where they can move around their own set of domino tiles.
If you go for it, let me know how it works out!!
Chris Cavert, Ed.D.