| When we related to the ability of expression ,we consider it the ability about literature naturally. In fact , it is very important to develop expressing math ability. Whether students can express their math thought in terse ,precise and nice math language can reflect their level of study of math. Modern math education strengthen the applying and innovation, and mathematical modeling is helpful in applying and innovation. Or other ,mathematical modeling is the bridge between practical problems and math problems,and it develop expressing math ability. We study some methods that mathematical modeling develop expressing math ability in the text. A brief outline of the text is given in the following .In chapter 1 a short introduction to develop expressing math ability is given. Researth objectives and importance are presented.Chapter 2 is devoted to the theory about mathematical modeling in senior middle school and ability of math expression, i.e. notations are defined and a survey on mathematical modeling in senior middle school and ability of math expression.In chapter 3 the contact of the function of mathematical modeling and expressing math ability is considered.Chapter 4 is a questionnaire on statistical result ,so that we can obtain .In chapter 5 some methods that mathematical modeling in senior middle school develop expressing math ability are given.The last chapter of this text, chapter 6,discusses some innovation and insufficiency on mathematical modeling and develop expressing math ability.The conclusion of this research is: According to the characteristics and equirements of mathematical modeling,I had researched how to develop expressing math ability by mathematical modeling and got some conclusions and strategies. The conclusion of this research provides evidence for developping expressing math ability.I hope it can service for teaching and students,even it plays an actively role in the students'ability of math expression.
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