Maths | Paper airplanes

LI: to use statistical and scientific methods to study the effect of wing span and area on lift.
Today in maths, we are still continuing on with paper planes. We had tested the flight distance of the paper planes. The results were different to our prediction. I think some problems were that we didn't use the same power of throwing the paper planes. I think that the other problem was that we didn't fold the papers well.