One of a series of teaching guides designed to enhance elementary and secondary schools' observances of United Nations' international days, this issue features two guidelines, one for teaching about World Meteorological Day (March 23) and one for teaching about World Post Day (October 9). These observances are encouraged in order to promote international understanding and peace through studies of world problems, cooperation, peoples, cultures, and human rights. The first guideline presents information about: (1) meteorology; (2) World Meteorology Day; and (3) the World Meteorological Organization. Objectives and activities are provided for use in language, history, geography, mathematics, and physical education classes and for extra-curricular activities. The second guideline presents an historical review of world post officers' development, along with objectives and learning activities for selected elementary and secondary classes. Other articles include: (1) "Mbuso" (S.Walker); (2) "Associated Schools Celebrate International Youth Year: International Youth Year Camp School in Finland" (L. Jaaskelainen); (3) "National Youth Congress of the Associated Schools, Tunja, Columbia;" and (4) "News of Projects in Associated Schools." Pictures and a map are included. (JHP)