Chaotic systems 2 Classical behaviors 2 Decoherence 2 Entropy 2 Phase space methods 2 Phase-space distributions 2 Planck constants 2 Quantum behaviors 2 Quantum coherences 2 Quantum-to-classical transitions 2 Renyi entropies 2 Scaling law 2 Scalings 2 Enseñanza de la mecánica cuántica; Enfoque de Feynman; Comportamiento cuántico del electrón; Conceptualización 1 Teaching of quantum mechanics; Feynman's approach; Quantum behavior of the electron; Conceptualization 1