Math Gallery Walk about Flying Cars
The kids did cooperative thinking to solve a problem. They each had a whiteboard separated into thirds. The top was for the model to represent the problem, the second section was for the expression, and the third section was for the equation and solution.
After the kids worked together, I had them stand and move table by table looking at the other thinking of their classmates.
It was a sticky problem and the key to having the kids get their thinking into a model helps them create the expressions and equations.