Predict: I predict this is going to be about moving weights to make the weights evenly distributed on the scales.
Read: Which two weight need to be swapped to balance the scales?
Big Question: Which two weights need to be swapped?
Mathematicians Toolbox: Make a List or Table and Write a Sum or Number Sentence.
Solve: First I added up the weight together on each side and got 16 and 12. Then I found the median between them, 14 and I figured out which weights needed to be move. 7 because no weight could be moved to make 14 and 9 because added to 5 it would equal 14.
Summary: The two strategies I used where very effective in getting the problem solved. It wasn’t to hard but still made me think.