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重视教学中处理通性通法和特例特法的关系,以不变应万变,又能随机应变。2014年5月,笔者有幸参加了宁波市教育部门举办的说题比赛,并荣获区一等奖。比赛是从浙江省近五年的高考解析几何解答题中任选其中一道题目组织说题活动,需要撰写说题稿和制作演示文稿。笔者特将说题稿整理成文与同行分享,希望抛砖引玉,共同促进数学解题与说题活动的发展。尊敬的各位评委、专家、同仁大家好:今天我说的题目是2013年高考数学浙江卷理科第21题,我将从
Pay attention to the teaching process of Tong Tong Tong law and special cases of special law relations, to be the same should be changed, but also adapt to change. In May 2014, I was fortunate enough to participate in the topic competition organized by the education department of Ningbo City and won the first prize in the district. Competition is from the Zhejiang Province nearly five years of college entrance examination analysis of geometric solutions to choose one of the topics organized by the topic of activities, the need to write a draft and make presentations. I would like to say that the title manuscript finishing and sharing with colleagues, hoping to start a discussion, and jointly promote the mathematical problem solving and the development of the topic activity. Dear Members, experts, colleagues Hello, everyone: Today, I said the subject is 2013 college entrance examination Zhejiang Science Volume 21, I will from