Lego Junkbot - Mathematical Problem Solving

You really need to try Lego Junkbot with your students. You can talk: gameplay, problem solving, guess and check, teamwork, cheating, the a-ha feeling, how certain games lack a necessary checking mechanism to ensure optimal learning (yep they really can handle this last one).

NB Instill in them that you are serious when you say if the solution requires 4 moves or less then '4 moves or less' is what is required. hehehehehe.