- Should they add more instruments to collect more types of data?
- Should they take away instruments to reduce the size of the submersible to be able to fit into smaller areas?
- What instruments should they add to guarantee their submersible still floats after it collects rocks from the bottom of the ocean?
The conversations in class have been mesmerizing! Second graders are really weighing their choices to determine what is "best." While some students think adding more instruments is better, other students would disagree. The argumentation has been wonderful to witness!