2nd Grade Balancing Game Strategies

During our science balance unit 2nd grade students played 2 games, MagnaForce and Stackrobats. However, I asked students to play the games cooperatively and discuss each move as a team before making it, the goal being to collectively get as far in the game as possible before gravity took over.  Six moves into each game the team took a photograph and imported it to Skitch. They annotated where they would make their next move and gave an explanation why, referring to concepts learned in the unit.