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science is, at the high school level, is not as easy as it might seem. Content can be taught, but content alone doesn't help students discern when science is being practiced, and when it is not. Process can be taught (the scientific method), but the sequence of hypothesis-data-interpretation-conclusion can be applied to many non-scientific situations. How do we distinguish science from pseudoscience for the lay public? How do we express the necessary acceptance by scientific peers without appearing elitist (nothing wrong with elitism, except in this context its a buzz word for unacceptability)? How do we define a continuum that ranges from mainstream science to scientific speculation to crackpot theories proven right to crackpot theories discarded to pseudoscience? How do we say that the lay person's "opinion" doesn't count when defining science, except in a political context? To define science from a theoretical standpoint will dilute the message for most high school students. I endorse Paul Belanger's solution: demonstrate by example, in front of a lay audience (like my classroom). Repeated exposure to legitimate scientific inquiry in local newspapers, magazines, local TV stations, classrooms, and public lectures will establish the boundaries of accepted scientific practice and subject matter. Show how ideas are considered, given credence, tested, or rejected. Scientists might also engage in a little pseudoscience bashing in public, to help define those boundaries.
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