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>