What shape do you have? Chances are you're a square, like most of us! But you could also be a big rectangle or a small rectangle ... discover your shape with us! It's not magic ... it's mathematical! The Pedagogical Side: Using unconventional measurement units and anthropometric proportionality measures, this segment highlights the notion that reliable units of measurement can come from objects that are representative of everyday life - such as the length of your arms and your height.