In this activity, students determine the contents of a ‘mystery’ box by making observations but without opening it, and parallels are drawn between this activity and...
Observing is something we often do instinctively. It helps us decide, for instance, whether it is safe to cross the road. But observation is simply more...
In this activity, students use only their sense of touch to put sandpaper samples in order from finest grade to coarsest grade.
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