应用型本科高校线性代数教学的思考

依据线性代数课程的特点,结合宿州学院线性代数教学的具体实际,分析了目前线性代数教学中普遍存在的问题,对应用型本科高校线性代数教学进行如下的分析与思考:(1)初等变换贯穿于课程始终;(2)适当弱化行列式的相关内容;(3)只提列向量、初等行变换;(4)结合实际引入问题;(5)加强线性代数与其他课程的联系。     

线性代数与解析几何教学改革的思考

线性代数是工科院校最重要的数学基础课程之一。开设这门课程不仅使学生掌握线性代数的基本概念和基本理论,而且要掌握代数中提出问题、分析问题和解决问题的思想方法。本文通过分析线性代数与解析几何教学中存在的问题,对线性代数与解析几何课程教学改革提出自己思考。     

线性代数教学中使用反例教学的例证研究

线性代数是高职院校的一门基础课程,其内容比较抽象,概念定理较多,学生在线性代数学习中常常感到无法在现实生活中印证线性代数知识,导致无法运用线性代数的思维方式进行思考,在很大程度上降低了学习效率。线性代数教学实践证明,在教学中恰当的使用反例能帮助学生正确地理解概念和定理,同时能减小命题证明的难度,具有较直观的教学效果,本文通过教学案例分析,展示了反例教学在线性代数教学中的应用。     

试析线性代数在数学建模中的应用

本文基于数学建模的涵义和线性代数的重要工具,结合线性代数中常用的工具是矩阵、向量和行列式在处理线性模型中的优势,以实例的方法分析了线性代数方法建模。     

关于工科专业线性代数课程教学的思考

文章从阐明线性代数在后续课程中的地位;以解决问题的方式引入线性代数的基本概念;利用多样化的网络资源;增加学习过程的趣味性;精选习题进行课堂、课后练习五个方面阐述了关于工科专业线性代数课程教学的思考。     

巧用线性方程组的两种表示形式解析向量间的线性关系

分析了经济应用数学线性代数教学中,线性方程组的矩阵式、向量式及向量间的线性关系三者之间的内在联系,对学生学习该部分的内容具有一定的指导意义.     

线性代数教学中的理论联系实际

本文主要以向量组的线性组合、n维向量的内积、夹角等内容在实际生活中的应用为基点,探讨了理论联系实际在线性代数教学中的必要性,以及如何开展理论联系实际,从而弥补传统教学中的不足。     

线性代数课程教学中的“具体抽象”

线性代数课程"抽象"为其最大特点,学习难度较大,特别是向量章节的内容学生学习倍感吃力,基于此,教师在教学中如何设计抽象知识过渡衔接是一个非常关键的环节。本文以教学实践为基础,实例讲解线性代数课程教学中如何做到"具体抽象"。     

线性代数中涉及向量组的几个概念的教学研究

本文对线性代数中涉及向量组的几个概念的教学做了仔细的研究,分析了现行教材中存在的问题,提出了自己的意见与建议。     

几何与线性代数教学衔接性的探讨

本文通过向量空间Rn与平面向量集合R2和空间向量集合R3的关系,平面的位置关系与方程组解的情况的对应,用正交变换将含有n个变量的二次型化为标准形与坐标轴旋转的关系,行列式在几何中的应用这几个方面,说明线性代数与空间解析几何有着密切的联系.在线性代数的教学中,应充分利用几何的直观背景去讲解代数中的抽象理论.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.