问HN：渐变
公立学校（在私立学校中情况稍好一些）面临的一个严重问题是，它们的教育体系是围绕最低标准建立的。整个目标是让那些勉强能够达到最低毕业要求的学生顺利毕业。除此之外，没有更高的层次，也没有为那些真正想要出类拔萃的学生提供差异化的教育。如果在学生高中毕业后有一个0到100的评分系统，那该多好啊。比如，20分可能代表一个刚好满足毕业最低要求的学生，而99分则可能是一个数学奥林匹克获奖者。也许50分可以代表一个大学毕业生？
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A serious problem with public schools, and to a lesser extent private schools, is that they are built around the lowest common denominator. The whole goal is to get kids who can just barely pass over a minimum bar to graduate. There are no tiers above that. There is no differentiation for those who really want to excel. Wouldn't it be great if there were some sort of rating system 0 - 100 after kids finish high school. Maybe 20 would be someone who just met the minimum qualifications for graduation, while someone at 99 would be a math olympiad winner type of person. Maybe 50 would represent a college graduate?