What did I learn?

I learned that paper airplanes are faster and travel farther when they have a small wingspan and are long, short ones that have a big wingspan fly slower and are harder to throw. I also learned correctly creasing and making slight adjustments to an airplane make a big difference because before making adjustments, one of the planes kept barely flying or flying backward. After adjustments, the paper airplane flew a lot straighter and farther than before. it signifies the importance of tiny details in symmetry.

What would I do differently?

I would make closer observations of each significant factor in why the individual airplanes flew slower or faster. I would maybe create designs more similar so that I would have a more accurate result: for example, I would just change one crease on each airplane to collect more accurate data of the particular small change and be sure of the significance and the difference each small crease makes in the airplane. I would make sure the throwing per airplane was more accurate as well as even more accurate folding and constructing of the airplane.