The Sphero Spark Edition (link is external) is an amazing little robot with lots of applications!  The student love this little ball.  We have have used it in the grade 2 class several times this year.

The first time was just basic driving on teams.  Which team could drive their ball closest to point on the floor. 

Then we tried the Draw and Drive app several times to drive and knock over an opponents flags (base ten blocks).

We also looked at some programing with the lighting lab.