Cover 21

Here is a fun logic game that you might want to try in the classroom. It would make a great anchor activity as well.

Create a 3 x 7 grid to use for a gameboard. Number them in rows like this:

1 2 3
4 5 6
7 8 9
10 11 12
13 14 15
16 17 18
19 20 21

How to play: Students take turns putting one or two markers down in order starting at the box with the "1" in it. The person who loses is the person who has to put a marker down in the "21" box.

Thanks, Dimis, for sharing this with me. And yes, there is a way to always win the game. The challenge is figuring it out!