Science, Technology, Engineering, Mathematics through Simple Machines: education tools for teachers of secondary schools, in order to engage students in active learning processes thanks to empirical-driven comprehension of the core contents, driven by experiments and gamification, while assuring gender equality. Discover the platform, in order to get to know videos, experiments and simple machine games realized by students and teachers during laboratories, international mobilities and summer camps. Primarily, 4 simple machines have been object of experiments (Inclined plane, Lever, Pulley and Gear). Nevertheless, some project activities have been related also to other machines, such as the mathematical ones. Finally, during the last summer school, complex machines have been experimented as well.