A while back I had this idea to challenge my kids. I created a puzzle, drew it on a whiteboard, and said "Figure it out." I didn't really give them any instructions per se, just that if they looked at the puzzle long enough, noticed things, and discussed their thoughts and observations with each other, they could probably solve it. I wanted them to think creatively. I wanted them to work collaboratively. And I wanted them to have fun. They loved it!