Early algebra ideas about binomial expansion, Stephanie's interview one of seven, Clip 7 of 9: Wondering about how to combine terms.

In the seventh clip in a series of nine from the first of seven interviews focusing on Early Algebraic Ideas about the binomial expansion, Stephanie uses the distributive property to determine that x(x + y) + y(x + y) can be expressed as x*x + x*y + y*x + y*y (with * signifying multiplication). When asked by the researcher, Carolyn Maher, whether this expression can be simplified, Stephanie is uncertain about how to combine terms or parts of terms.Transcript and student work are also availableRobert B. Davis Institute for Learning. (1995). Early algebra ideas about binomial expansion, Stephanie's interview one of seven, Clip 7 of 9: Wondering about how to combine terms. [video]. Retrieved fro