Prealgebra, Thus, 3/11

Our review today involved adding fractions with a common denominator -- it's getting a little trickier every day. We worked on the back side of yesterday's assignment and most completed it in class -- if not it can be turned in tomorrow. I didn't tell the students, but this is going to be graded as EXTRA CREDIT (if I told them in advance, many wouldn't do it). We finished with a brief discussion of 1D, 2D, and 3D figures, their measurements and their boundaries.