The Movimiento Cooperativo de Escuela Popular (MCEP), one of the pedagogical renewal movements existing in Spain, born in the final moment's political regime of Franco, accumulates an intense history, from its inspiration in the Pedagogy Freinet. Among its most significant initiatives, reference should be made to the journal Colaboracion (1976-1985), since in it we find clues, pages and notes that can help us understand, on the educational level, the period of the so-called Political Transition. In your analysis we will focus our attention.