对发展性评价激励作用的认识

重视学生评价的发展性功能,意味着评价学生不仅考虑其过去,重视其现在,更着眼于其未来,要发现其潜能,发挥其特长,了解其发展中的需求,帮助其认识自我、建立自信。     

对发展性评价激励作用的认识

重视学生评价的发展性功能,意味着评价学生不仅考虑其过去,重视其现在,更着眼于其未来,要发现其潜能,发挥其特长,了解其发展中的需求,帮助其认识自我、建立自信.     

非法获利为多少

小猪其其哭丧着脸来到大象伯伯家,看到大象伯伯,其其的眼泪就吧嗒吧嗒地直往下掉。大象伯伯连忙问其其受了什么委屈。其其一边哭一边说:“昨天,狐狸和老鼠到我的店里买玩具,     

一念海角，一念天涯

于茶,有人厌其苦涩,有人恋其清甜;于牡丹,有人倦其庸华,有人赞其绝艳;于人生,有人叹其平碌,有人享其繁华。     

位置之论

余尝闻古人之言曰:在其位,谋其政。余以为人当先知其位,方可谋其政。若未在其所知之位,既得位,而其心亦不可谋其政也。是故人当先知其位,然则得其位,后而谋其政。鹏唯其大,背负泰山,翼若垂天之云。若驱     

关于中小学班主任专业化发展的若干思考

在中小学班主任专业化发展的过程中,现代教育观念是其发展的前提,专业知识是其发展的基础,专业能力是其发展的关键,教育信念是其发展的内在动力,精神关怀是其核心内容,参与教育科研是其必由之路,富有教育智慧是其发展的理想境界。     

辞采瑰丽 气格雄劲——《李贺集序》(节选)赏析

[原文] 皇诸孙贺,字长吉,元和中韩吏部亦颇道其歌诗。云烟绵联,不足为其态也;水之迢迢.不足为其情也;春之盎盎,不足为其和也;秋之明洁,不足为其格也;风樯阵马,不足为其勇也;瓦棺篆鼎,不足为其古也;时花美女,不足为其色也;荒国(?)殿,梗莽丘垅,不足为其恨     

莫后光教柳敬亭说书

莫君之言曰:义虽小技,其以辨性情,考方俗,形容万类,不与儒者异道。故取之欲其律,中之欲其微,促而赴之欲其迅,舒而绎之欲其安,进而止之欲其流,整而归之欲其洁。非天下至精者,其孰与于斯矣。柳生乃退就舍,养气定词,审音辨     

解读杂说

蚓食土而饮泉,其为生也,简而易足。然仰其穴而鸣,若号若呼,若啸若歌,其亦有所求邪?抑其求易足而自鸣其乐邪?苦其生之陋而自悲其不幸邪?将自喜其声而鸣其类邪?岂其时至气作,不自知其所以然而不能自止者邪?何其聒然而不止也!吾于是乎有感。     

童话引领小学生诗意教育的研究与实践

童话是符合小学生思维特点的虚幻故事,能激发其主观能动性,使其能主动探索世界.引领小学生走进童话的诗意教育,有利于激发其学习兴趣,培养其听读说写能力,丰富其语言积累和想象力,提升其综合素养,从而促进学生充分发展.     

也谈线性相关与线性无关

通过类比线性代数学中的关于线性相关与线性无关的定义及其性质给出函数组的线性相关与线性无关的一个新性质及二个推论．     

Development of a linear compressor for two-stage pulse tube cryocoolers

A valveless linear compressor was built up to drive a self-made two-stage pulse tube cryocooler. With a designed maximum swept volume of 60 cm^3, the compressor can provide the cryocooler with a pressure volume （PV） power of 400 W. Preliminary measurements of the compressor indicated that both an efficiency of 35%-55% and a pressure ratio of 1.3-1.4 could be obtained. The two-stage pulse tube cryocooler driven by this compressor achieved the lowest temperature of 14.2 K.     

虚拟变量在线性回归模型中的一种应用

若干特异点处的统计量容易导致回归方程拟合不足,本文引入虚拟变量（Dummy Variables)给出一种较为实用的解决途径。     

基于学员综合素质评估的模型与算法研究

为实现学员综合素质的评估,提供一种针对人才培养质量考核的有效手段,在对目前通用的评估模型与算法比较分析的基础上,构建了基于学员综合素质评估的两类模型一线性评估模型和平面评估模型,设计并实现了针对两类模型的评估算法;结合指标体系,对两类评估模型及算法在实际系统中加以应用,结果符合专家预测,验证了模型和算法的可用性和科学性。     

Linear Programming建模研讨

研究用图解法、simplex method和匈牙利法建立Linear Programming的数学模型并求得了最优解.结果表明:对仅有两个变量的Linear Programming,既可通过图解法求得最优解;也可用单纯形表简便地求得最优解;而对任务和人数不等的assignment problem,则用匈牙利法求最优解.     

Analysis on Sense of Time in Different Countries

Great changes have brought about the shrinkage of the Earth in effect,it became a global village. In this situation,it will be better if we could know something about our business partner or someone else with a different cultural background. By the processing of learning,we could see the deep reason,appreciate the diversity of cultures,respect the differences,anticipate the potential problems in intercultural communicates and improve the ability to deal with them.     

线性代数教学中关于向量组线性相关性概念的引入与延伸

线性相关性理论是线性代数中的重要内容,本文对教学中向量组的线性相关性的概念的引入,定义的延伸与拓展进行了研究,并分析了其在后续课程最优化和小波分析课程中的应用,拓展了知识面,开阔了学生视野.     

变系数线性齐次微分方程的求解

对变系数线性齐次微分方程,当其系数满足某种条件时,本文给出了它有x~re~(kx)型解的充要条件。     

Pick a Number … Any Number?

A recent classroom revelation caused us to reconsider the adequacy of the instructions offered in our textbooks for one of our most elementary quantitative methods. Specifically, we found that many students were mystified concerning how to pick an initial objective function value when plotting an isoprofit line in order to graphically solve a linear programming problem. We observed that this seemingly insignificant issue was causing a surprising amount of wasted time, confusion, and even anxiety. Our experience indicated that students do not necessarily possess any consistent intuition for choosing an appropriate initial value. We confirmed this perception through informal experimentation. We reviewed several textbooks and found that most simply do not bother to address this issue. Therefore, we devised a simple, comprehensible method which we have taught our students to resolve or avoid this problem. Although we quickly found the method to be helpful for many students, we conducted an experiment to formally measure its effect.     

具有幺元的Banach代数中的线性系统

在具有么元的Ｂａｎａｃｈ代数中给出了指数函数的概念，讨论了它的性质．并利用这一函数，讨论了线性系统解的存在唯一性，豫解式和解的表达式．