adulteducation authorship collaboration compositionandexercises congresses discussion economicpolicy englishlanguage etc exercises groupworkineducation interactionanalysisineducation languagearts mathematics meetings nonprofitorganizations oralcommunication planning politicalparticipation politicsandgovernment problems problemsolving publicmeetings socialpolicy southafrica studyandteaching studyandteaching(elementary) textbooksforforeignspeakers