Early algebra ideas about binomial expansion, Stephanie's interview three of seven, Clip 4 of 7: Beginning to explore volume as it compares to area

In the fourth clip in a series of seven from the third of seven interviews in which 8th grader Stephanie explores Early Algebraic Ideas about Binomial Expansion, Stephanie refers to the Base-10 squared materials to explain the difference between area and volume to the researcher, Carolyn Maher. They extend an earlier problem modeling the square of (a+b) by considering various numbers, a and b, for which the sum of the two numbers is 10. Stephanie provides an argument for why the volume of the cube with a side of 10 units is 1000 cubic units. The problem as presented to Stephanie: How could you convince someone that the volume of the large cube is 1000 cubic unit?Transcript is also available.Robert B. Davis Institute for Learning. (1996). Early algebra ideas about binomial expansion, Stephanie's interview three of seven, Clip 4 of 7: Beginning to explore volume as it compares to area. [video]. Retrieved fro