Investigating Weight 1:
How good are our senses at comparing the weights of the cubes?
3. Order four cubes by felt weight
Pairs 10 Mins Notebook
The investigation unfolds in two stages. In this first stage, pairs of students are challenged to order four cubes by felt weight, recording their observations in their notebooks on the page titled “How good are our senses at comparing the weights of the cubes?”
Students may handle the cubes in any way that aids comparison, perhaps holding one in each palm, or balancing one on the back of each hand, or holding them pincer–like, suspended from their fingers.
Circulate among the students as they work, offering encouragement. Perhaps they could try switching hands or closing their eyes.
The task is harder than it looks, and the students will have to work quickly, reaching consensus in about 10 minutes.
