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宣传数学在四化建设中的巨大作用,是爱国主义教育的一个重要内容。《圆锥曲线》一章和生产实践联系十分紧密,根据课本安排,可以讲解下列实例。拱桥拱桥是我国劳动人民的创造,赵州大桥、苏州宝带桥、扬州五亭桥等都是很著名的拱桥,不过那些拱桥都是圆拱。随着科学技术的发展,当代的拱桥都是抛物线型的,用心读书又善于联系实际的学生会想到,课本上说拱桥是抛物线型的,为
The great role of propagating mathematics in the construction of the four modernizations is an important part of patriotism education. The chapter “Conical curve” is closely related to the production practice. According to the textbook arrangement, the following examples can be explained. The arch bridge arch bridge is the creation of the working people of our country. The Zhaozhou Bridge, Suzhou Baodai Bridge and Yangzhou Wuting Bridge are all famous arch bridges, but those arch bridges are arches. With the development of science and technology, contemporary arch bridges are parabolic. Students who study hard and are good at connecting with reality will think that textbooks say that arch bridges are parabolic.