以问启知 以问促思——浅析高中语文课堂上如何激发学生的问题意识

随着教育改革工作的不断推进,教育理念也从“以教师为教学的中心”转变成了“将学生放在教学的主导地位”,以生为本的理念已经成了新课标所提倡的主导思想。传统教学中以教师为教学主导地位、学生被动接受知识的方式已经过时,因为这样的方式既不符合教学规律,也不符合学生的学习规律,更不符合新课标的要求与目标。引导学生主动学习、主动思考才是更有利于提高学生能力与素质的方式。因此,教师在教学工作中注重激发学生的问题意识,引导学生自己主动去思考、去提问,以问启知、以问促思,从而解决问题才是正确的教学方式。基于此,本论文以高中语文教学工作为例,重点探析在语文课堂上如何激发学生的问题意识。

挖掘美育材料 以美启知培德

(一) 德育和美育总是联系在一起的。思想政治课教学是德育的主渠道,完全可以借用以优美的艺术形象和事物影响、感染受教育者的美育手法,变死板说教为生动形象的情感与思想熏陶,从而使学生形成高尚的思想品德,学得必要的科学知识。 高二《思想政治》(上册)为将马克思主义哲学常识生动形象地传授给学生,向人民群众学语言,采撷富有生命力的东西,吸取外国语言中的精华,利用古人语言中迄今仍熠熠生辉的“珍珠”,使教材行文独具美学特色。教材引俗谚俚语、成语寓言、诗词对联、新闻简讯、古语典故、神话故事,使课文不是而又胜似文学作品,读后给人以强烈的美的感染,使人不知不觉地接受它所叙述、抒发的思想内容和情感,并自我培养、创造美。

以数学写作推进数学尚“识”教育

建构主义认为：理解是通过与环境的互动发生的;认知冲突或困惑是相对学习而言的一种刺激,决定着学习内容的实现和组织形式.江苏师范大学黄晓学教授以发生认识论的观点审视了在数学教学中学生认识发生、发展的脉络,提出了数学教育贵在尚＂识＂的观点,并以此观点为依据提出了＂诱惑、导学、启知、发识＂四环节教学论.

用复数法解一类几何定值问题

在中学里只介绍了复数的简单知识,对其应用则介绍的很少。其实,复数的应用很广泛,与中学教材内容联系也是很多的。本文介绍用复数法解一类几何定值问题。为便于论证。

你就是一个产品经理

在移动互联网时代,人人都是媒体,普通个人可以影响几十人,自媒体人可以影响几十万乃至几百万人。信息的传达不再掌握在极少数的传统媒体里,个人及自媒体的影响力往往能获得更好的效果。互联网电子商务特别是移动互联网的发展让商品价格变得透明,直接压缩了原来属于经销商和代理商们的利润空间。这些商业影响,最终引起新的商业革命,这些变化根本上是思维模式上的改变。思维重启知易行难互联网时代重塑了思维的价值,然而思维重启的过程是艰难的。在接触及协助一些传统企业家转型的过程中,我发现他们面临的困难主要有以下四点。

Application-adaptive resource scheduling in a computational grid

Selecting appropriate resources for running a job efficiently is one of the common objectives in a computational grid. Resource scheduling should consider the specific characteristics of the application, and decide the metrics to be used accordingly. This paper presents a distributed resource scheduling framework mainly consisting of a job scheduler and a local scheduler. In order to meet the requirements of different applications, we adopt HGSA, a Heuristic-based Greedy Scheduling Algorithm, to schedule jobs in the grid, where the heuristic knowledge is the metric weights of the computing resources and the metric workload impact factors. The metric weight is used to control the effect of the metric on the application. For different applications, only metric weights and the metric workload impact factors need to be changed, while the scheduling algorithm remains the same. Experimental results are presented to demonstrate the adaptability of the HGSA.

Exact Solutions of VNE: A Survey

Network virtualization is an enabling technology of running multiple virtual networks on a shared substrate network. It aims to deal with the ossification of current network architecture. As a crucial component of network virtualization, virtual network embedding(VNE) can efficiently and effectively allocates the substrate resource to proposed virtual network requests. According to the optimization strategy, VNE approaches can be classified into three categories: exact, heuristic and meta-heuristic solution. The VNE exact solution is the foundation of its corresponding heuristic and meta-heuristic solutions. This paper presents a survey of existing typical VNE exact solutions, and open problems for the future research of VNE exact solutions are proposed.

Shared Ideas,Divergent Approaches:The Hydromethods of the Great West(Taixi shuifa泰西水法)and the Question on Tides

One of the questions about natural phenomena asked in the Hydromethods of the Great West(Taixi shuifa泰西水法;1612)(hereafter TXSF),composed by the Italian Jesuit Sabatino de Ursis with the support of the Chinese official Xu Guangqi徐光啟,concerns the causes of sea tides.The idiosyncratic answer given in the TXSF serves as an example for the Jesuit missionaries,strategically motivated approach to the transfer of knowledge through the translation of Western scientific thought into Chinese.From a chronological overview of the attempts made both in the East and in the West to theoretically conceptualize the causes of the cyclical occurrence of ebb and flow,the comparison reveals that despite being based on totally different cosmologies,the related insights were virtually on a par.The aim to nevertheless convince the audience of the TXSF of the superiority of Western sciences resulted in a particular rhetoric and a division of tasks in the composition of the tides paragraph.In order to verify the success of this joint effort of de Ursis and Xu Guangqi,a change of perspective from the transmitter to the receiver side is necessary.Thus,the paper also explores the work's reception in later Chinese works dealing with this topic.

Cumulative prospect theory-based user equilibrium model with stochastic perception errors

The cumulative prospect theory(CPT) is applied to study travelers' route choice behavior in a degradable transport network. A cumulative prospect theory-based user equilibrium(CPT-UE) model considering stochastic perception error(SPE) within travelers' route choice decision process is developed. The SPE is conditionally dependent on the actual travel time distribution, which is different from the deterministic perception error used in the traditional logit-based stochastic user equilibrium. The CPT-UE model is formulated as a variational inequality problem and solved by a heuristic solution algorithm. Numerical examples are provided to illustrate the application of the proposed model and efficiency of the solution algorithm. The effects of SPE on the reference point determination, cumulative prospect value estimation, route choice decision and network performance evaluation are investigated.

Improving Audit Judgment and Decision Making With Dual Systems Cognitive Model

This article proposes a dual system cognitive reasoning model to enhance audit judgment and decision making. The model is built on the fact that the total cognitive capacity of an individual comprises two systems of reasoning--System 1 that is unconscious, associative, implicit, more emotional and less controlled, and so forth; and System 2 that is conscious, explicit, deliberate and rule-governed, and so forth. The benefits of the proposed model that integrates these two complementary and compensatory systems are first illustrated with an example in audit planning, and second explained how the model could overcome the deficiencies of heuristics specifically in an audit context.

机车启动习题编制中最易疏忽的问题

在高三一轮复习功和功率时,机车启动问题综合了匀变速直线运动、动能定理及其功和功率的实际应用,是一个复习的重点也是难点,在各种类型的教辅用书上都做了系统的总结与归纳,也都配上相应的例题或练习。在此基础上部分教辅用书还进一步进行拓展,例如将机车启动改变成电动机提升重物,因为原理是一样的。笔者在实际的教学过程中就摘录了教辅用书上的一个习题让学生练习,习题如下:一列火车质量是1000 t。

ZEEMAN SPLITTING IN MSSBAUER SPECTRA OF LAIHUNITE AT LOW TEMPERATURE

Laihunite is an iron silicate mineral newly found in China. Its crystal structure has been determined by X-ray diffraction method(2,3)Its space group is P（21/b）,Z=2, with an ideal chemical formula of Fe23+Fe2+（SiO4）2. The value of ratio Fe3+/Fe2+ of samples is in the range from 1.5 to 1.8. Its Mssbauer spectra at room temperature has been successively reported[1,4].

打开东西通路

急需用电话,而又久打不通,这是最急人的了。假若你在南京要往重庆挂一个长途电话,可就难了。局外人不知道,这个电话,往往要舍近求远,绕道北京或其他地方,经过好几道转接才能到达。很多地方长途电话久挂不通,其原因就是电话线路少,迂回路线长。因此,空等半天一日,而又一无所获,这是常有的事。如今,这个状况有了转机,不要多久,打长途电话就可以很快接通了。1989年底,我国邮电通信部门作了很大努力,在中部地区打开一条新的通路——宁汉渝光缆数字通信工程。 1989年年底,我国已从南京到武汉,在全长1000公里的地下,敷设了一条不及半根头发丝粗的通信光缆,它是被当今世界称为高、新技术的我国“七·五”期间国家重点建设工程项目之一。

头雁哪飞?

某公司,因经济效益不佳,多年未建职工宿舍,经理住在一栋旧平房里。不久前,他爱人单位建宿舍,规定分房者预交1.5万元。机不可失,但钱从何来?经理把主管会计找到办公室,诉说苦衷。会计爱莫能助。其实经理也知道。

形形色色的手

身为农信社的一名基层客户经理,我每天都能接触到不同的客户,当他们伸出手签字或按下手印的一刹那,看着形形色色的手,我不由心生感叹。他们的手,有的粗大,有的娇小,有的洁白柔软,有的苍老坚硬,但都是劳动者的手,都诠释着劳动的真谛,混合着人生的酸甜苦辣。一名中学老师到信用社办理"阳光园丁贷",当她在贷款合同上按下指印的一瞬间,我发现她的指尖干燥皲裂,指缝间夹杂着白色粉末。"粉笔字写久了,指纹有点被腐蚀。"