SCHOLA LUDUS serious educational games The problem of mechanic balancing in virtual and real games

The SCHOLA LUDUS approach to educational games will be presented in this contribution by the game Duel on a labile salver in comparison with several free virtual games focused on mechanic balancing. The game Duel on a labile salver is focused on physics, specifically on understanding rotational effect of force and role of friction. The key developed concepts are: centre of mass, moment of force, system, (non-)equilibrium, sensitivity and stability. Several virtual games based on similar task - to balance the lever - can be found in internet. Can we use them to learn physics? What is the difference between the virtual and real game?