Using cubes with Adding/Subtracting Polynomials:

1. Prepare two cubes which contain polynomial expressions.    (A third cube could be prepared that contains operations:  Add, Subtract, Evaluate when x = 5, y = -3, Evaluate when x = -2, y = 4, etc.)

2. Inform students of the directions:   "Roll the two cubes, record the polynomials on the answer sheet, then ADD (or SUBTRACT) the polynomials." 

3. Possible expressions for the cubes are shown below.

Roberts