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西南联大在昆明的8年时间,是数学系教授杨武之家最为困难时期。杨教授家的人口多,有5个孩子需要抚养、教育。那时,杨教授的大儿子杨振宁17岁,已经是西南联大学生,其他4个弟妹都还小。为减轻父亲的负担,杨振宁主动当起“娃娃头”。为鼓励弟妹们多念书,他制定了一些颇为吸引人的规则:一天之中,谁念好书、认真完成作业、听母亲的话、帮忙做家务、不打架、不捣乱,就给谁记上一个红点,反之就要记黑点。一周下来,满
In the eight years of Kunming, the Southwest Associated University was the most difficult time for Professor Yang Wu, a professor of mathematics. Professor Yang’s family has a large population of five children who need education and support. At that time, Yang Zhenning, the youngest son of Professor Yang, was 17 years old and was already a Southwest Associated University student. The other four siblings were still young. In order to reduce the burden on his father, Yang Zhenning take the initiative to play “doll head.” In order to encourage more siblings to study, he formulated some very attractive rules: one day, who read a book, conscientiously finish homework, listen to his mother’s words, help with housework, do not fight, do not make trouble, and give a note to whom A red dot, and vice versa must remember dark spots. One week down, full