怎样学数学,华罗庚教授建议你头脑中要经常保留几个问题——几个目前尚未解决,而不久或很久才能解决的问题.1964年,华爷爷在南京师范大学附属中学举了一个十分有趣的问题给大家: 苹果能从树上落到地面,为什么茶杯盖子不会掉进茶杯里去呢? 也许,你认为这很简单:“盖子比口大,当然掉不进 How to learn mathematics, Professor Hua Luogeng suggested that you should always keep a few questions in your mind - several problems that have not yet been solved and that will be resolved soon or for a long time. In 1964, Grandpa Hua in the middle school of Nanjing Normal University attached a very interesting The problem for everyone: Apple can fall from the tree to the ground, why does the lid of the tea cup not fall into the cup? Maybe, you think it’s simple: "The lid is bigger than the mouth, but of course it won’t fall.