This article investigates the original meanings of the term popular education in Latin America, whose polysemy acquired along the historical process imposes inaccuracies and obstacles to the educational debate. The guiding thread of the article is an interview with Carlos Rodrigues Brandão, for whom popular education is the work and militancy of a “thinking community”, which aims at a revolutionary process, whose liberation is the first matter of an education that is not characterized only by addressing the popular class. The origin of this tradition in the context of the 1960s, first in the effervescence of Latin American popular movements and revolutions, and then organized as resistance and fight against dictatorships, places this popular education as an insurgent practice, of organization and confrontation against the State. The text is one of the results of a research carried out through historiographic and bibliographic study, as well as interviews and conversations conducted with popular educators.