In MACOS, the concept was "the chain of
life" or a "lifeline": the entire history of a living thing. The course started with a simple lifespan in the form of the Pacific Coast
salmon. It then moved on to the more complex life form of the
herring gull, introducing concepts such as nurturing. The lifespan of the
baboon was next examined, particularly within the societal context afforded by the
baboon troop. The differences between
innate behaviour and
learned behaviour were introduced. Finally, the study opened up into a study of a man's lifespan with a case study of
Netsilik Inuit. This also included the interaction between the Netsilik and other life forms, such as
reindeer and
seals. The course comprised a self-contained kit of course materials, film cassettes, visual aids, and games. Some of the activities were very imaginative; a game based upon reindeer
migration had a loaded
die to introduce discussion about instincts, and a paper seal would be cut up and shared among class members representing various people in the
Netsilik community, according to a ritual governing who was entitled to which part of the animal. The emphasis of the course was upon learning particular skills within the teaching process, not upon the significance of the content. This included the necessity to ask questions, discuss, and reach conclusions based on evidence and argument. ==Criticism==