下课后，老师拿起所有学生的答题纸，读了答案。

At the end of the class, the teacher took all the students' answer sheets and read the answers.

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最后老师平静的告诉我这个题目就是前天考试的第一题，接着要求我在下课后向他解释为什么我试卷上的答案准确无误。

Finally the teacher calmly told me this title is the first question before exam, then asked me after class to explain to him why I answer on the paper is accurate.

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优秀学习者常常在课上或课后提问。他们甚至相互提问并且尝试找出答案。知识源于质疑。

Good learners often ask questions during or after class. They even ask each other and try to find out the answers. Knowledge comes from questioning.

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