“…From different positions, the cognitive unit that organizes the subject’s knowledge has been given many different names. Thus, it is called, action or operative scheme (Coll, 1983; Delval, 1997; Piaget, 1978a), implicit theory (Castorina, Alicia, & Toscano, 2008; Pozo, Scheuer, Mateos, & Echeverría, 2006; Rodrigo & Correa, 1999), personal theory (Kelly, 1955), domain theory (Karmiloff-Smith, 1994; Vosniadou, 2009), intuitive theory (Guo & Carey, 2008; Pozo, Scheuer, Mateos et al, 2006), cognitive scheme (Pascual-Leone & Johnson, 2005; Rumelhart & Ortony, 1982), alternative scheme (Driver, 1986), mental model (Gutiérrez, 2005), etc., with the caveat of differences in detail, due to the fact that they are based on or supported by different assumptions (Castorina, 2002; Delval, 1997; Pozo, 1989; Vuyk, 1985), in general, cognitive functions that different authors allocate, show similarities but also differences (Marín, 2003a).…”