Students quickly realized that they need to use the turtle setting otherwise they would over shoot the number. It was a great way to explore the integration of math and the sphero for our younger students and will be incorporated into our Design Lab as an option to play. It is an entry level activity because it works on controlling the sphero and the amount of math done was not a primary focus at this time.
We also tried the draw app to have students draw the answer and then have their sphero show the number on the ground. This did not work very well... so back to the drawing board with that idea.