The basic principles of flight can be studied and learned from many references; textbooks, articles, forums, etc. Those info are only theoretical and a practical proof will definitely provide a quick understanding of the flight principles. That can be applied to a paper plane glider.
Constructing a paper plane glider is much faster than constructing the model aviation. The parts’ template are printed on a paper and cut according to the shapes.
Notes: the scale of this paper plane glider does not have to be big for easy and quick construction (approximately 200 mm of wing span).
Once all the parts have been assembled and glued together, various experiments can be conducted so as to learn the flight aerodynamics; the effect of control surface, the effect of C.O.G location, the wing’s dihedral / polyhedral /anhedral angle, the effect of winglets, flaps, slats and many more.
The control surface, such as ailerons, elevators, rudders, canards, flaps, etc, can be adjusted by simply folding the paper. The position of the control surfaces determines the aircraft maneuver when thrown into the air. Adjusting the optimal C.O.G location can be a challenge by adding / removing small weight ( applying tape to the nose or tail ) incrementally until the paper plane can glide smoothly through the air. The thin airfoil may also be shaped to a curved-shape for generating more lift at slower flight speed. Each and every adjustment made will give different flight characteristics.
Prioritise the fun and the learning will come.
“ Tell me and I forget, teach me and I may remember, involve me and I learn.”
– Benjamin Franklin