记录学习过程的六个阶段： remembering, understanding, applying, analyzing, evaluating, creating
advantages: learning record statement 到市场部换钱 模拟现代文明社会的运行过程 胡萝卜+大棒
method buy, nc, sc, cc3.0 学习记录语句的语法 <Actor(learner)> <Verb> <object> with <result> in <Context>
