Ogienko, OlenaTerenko, Olena2018-10-232018-10-232018Edukacja – Technika – Informatyka nr 2(24)/2018, s. 169–1742080-9069http://repozytorium.ur.edu.pl/handle/item/4017The article defines the essence and significance of adult non-formal education as an important component of the system of continuing education; analyzes changes in the definition of the phenomenon of non-formal adult education, its role and place in the knowledge society; emphasizes on the importance of development of mechanisms for validation of results of non-formal and informal adult education, training of and ragogues; outlines perspectives of its development.engAttribution-NonCommercial-NoDerivatives 4.0 Międzynarodowehttp://creativecommons.org/licenses/by-nc-nd/4.0/adult educationnon-formal adult educationknowledge societylifelong learninginstitutionalizationvalidationtrainingarticle10.15584/eti.2018.2.222450-9221