A teacher in Africa has his young students clap and sing at their desks in front of a chalkboard. Another teacher sits with her students in front of cameras on a little stage. They sing for the educational television program. A loudspeaker attached to a large boat that glides down a river out of Bangkok, broadcasting to small villages and delivering messages about the importance of learning. An animated farming film being shown to people in Thailand. African tribesmen being taught how to put insecticide on their crops.