Introduction: Paper Airplane
You need one piece of rectangle paper.
Fold the paper in half then unfold to get a center crease.
Fold the two bottom corners OR top corners into a triangle.
Fold the top down.
Like before, take the two TOP corners and fold them down into the middle.
Take the leftover triangle from the last fold and fold it up.
Flip the whole thing over.
Fold the thing in half.
Fold the wings.
And you're done!