本系列的下一篇将会把这些知识应用到一个真实的数学应用程序中。
The next article applies this knowledge into a real-world numerical application.
孩子在他的早期以感性认识为主的阶段可以接触到真实的数学物体，能够使他有更大的机会成为一个真正的数学爱好者。
A child who is allowed to explore with real mathematical objects at an early, motor-sensorial age stands a good chance of becoming a real math lover later in life.
“跟大家一样，我很讨厌那些有数学家的电视或者电影，”Cohen说，“一点儿也不真实。”
"As a general rule, I hate watching TV or movies with mathematicians in it," Cohen says. "it never rings true."
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