Playing with Paper Airplanes?

My goodness, what better way to learn about surface area and tension/friction.  How about understanding a balance between lift and gravity, or thrust and drag?

There be paper airplanes all over the school, but, the learning that took place is beyond expression.  Today, most of my kiddoes designed and launched airplanes from the gym balcony, with the emphasis,, on keeping the plane in the air for a minimum of five seconds,.

Monday we launch for distance.