On July 26, 2021, AO "DVV International Moldova" convened in a resort near Chisinau a number of 18 local trainers, representatives of partner organizations in a summer school "Critical thinking - an integrating competence in the development of educational programs for adults". The need for such an internship has been identified in an intense exchange of views with people who conduct adult training activities and who want to develop their skills in creating and delivering relevant, motivating programs focused on specific ALE approaches. Participants and trainers used methods and techniques that stimulate the generation of opposing ideas, as well as active listening, assertive argumentation, etc.