... Searle, 198 0; White, 197 6, 197 7; Leslie, 197 8; Jamison & McAnany, 197 8; Byram, Kaute & Matenge, 198 0; Hall & Dodds, 197 7; McAnany, 197 6). In this regard, Sweeney and Parlato ( 198 2) ... Thailand, to teach mathematics to school children (Galda, 198 4), and for teacher training and other curricula (Faulder, 198 4). 2. India, for rural development (Long, 198 4). 3. Swaziland, for ... experiences and ideas and to participate in group problem solving. The two-way flow of information between farmer and extension worker improved retention and overall learning of participants...