Looking for some fun and engaging ways to have kindergarten kids participate in problem solving (and creating), I turned to my trusty friend, Lego. Like many division one teachers, I use Lego often because it has so many applications. But as the 2014-15 school year came to a close, I was looking for a challenge. So, what I did was created a maze with Lego that a marble would travel to and showed this to the kids. I then challenged the kids to make a maze that would fit the marble (there had to be three empty spaces for width at all times).