让学生成为课堂教学的主角

21世纪呼唤人的主体性，因此，大力弘扬主体精神，把主体精神的培养落在课堂教学中，是小学数学实施素质教育的关键所在，也是小学数学教育面向21世纪的发展方向。小学数学教学表现主体精神不仅是教育观念的重大转变，而且体现在教学过程中，教师要运用各种教学方法引导学生参与学习，主动学习，指导学习掌握思维方法和学习方法，发挥学生在教学中的主体作用，让学生成为学习的主人。     

如何激发初中生数学学习的兴趣

教师应从以下几个方面激发学生学习数学的兴趣:(1)联系生活,创设学生熟悉的生活情境,激发学生兴趣;(2)以新的理念为指导,自主地、创造性地使用教材,发展学生兴趣;(3)组织有效的小组学习,增强学习兴趣;(4)运用生活中的实例,产生例题,巩固学习兴趣。     

课堂教学中主体性教育的实施

主体性教育高扬人的主体性，把学生视为发展的主体，把整个教育过程视为对学生的引导和帮助，为了充分发挥学生学习的自主性，能动性和创造性，在课堂教学中必须实施主体性教育。     

关于初中自然科学主体性教育的研究

主体性教育是素质教育的重要特征之一。本文从遵循兴趣规律,引导学生自觉性地学习;实行教学民主,引导学生主动性地学习;精子教学设计,引导学生创造性地学习这三方面进行阐述。最后笔者认为改变传统的教育观念是实施主体性教育的关键;建立相应的教学原则是实施主体性教育的保证;教师群体素质的提高是主体性教育的前提。     

小学数学主体性教学模式策略浅议

"主体性教学"是素质教育改革发展新时期,我国教育领域提出的新的教育理念。学生作为教学活动中的主体,在实际的教学活动中,常常处于被动、灌输式的学习状态,不能发挥真正的主体性作用。小学数学的教学活动是在教师的鼓励和指导下,学生不断开动脑筋,自主学习的过程。小学数学主体性教学模式的设计研究,对培养学生创新思维和实践创造能力有重要的指导意义。     

研究性学习在地理教学中的应用

现代教学观认为 ,教学应以学生为主体 ,这种以学生为主体的行为应充分地让学生去自主地学习 ,主动地获得知识 ,教师则是这一过程中“引路者” .在地理教学中实施研究性学习 ,可从以下几方面去努力 :(1)制定综合性教学目标 ;(2 )创设问题式的教学情景 ;(3 )坚持探究性和启迪性学习 ;(4 )采用多样化的教学方法 ;(5 )开辟广阔的教学时空     

关于“空间与图形”课程目标的几点认识

"空间与图形"课程的首要目标是使学生更好地认识、理解和把握自己赖以生存的空间.可以从以下几个方面来认识空间与图形的课程目标:(1)获得必需的知识与技能;(2)培养空间观念与几何直觉;(3)在探索图形性质的过程中发展合情推理能力,初步感受公理化思想;(4)在解决实际问题的数学活动中培养学生的创新精神.通过举例说明如何让学生经历探索、猜测、建立数学模型等数学活动.并指出正确认识空间与图形的课程目标,能让学生体验数学学习的乐趣,逐步积累数学活动经验,发展空间观念和自主创新意识,从而更好地认识和理解自己的生存空间.     

浅谈工程力学课堂教学学生主体性的发挥

近些年,学生被看作信息加工主体的认知学习理论正随着我国深入实施素质教育和学校全面开展新课程改革而逐步形成,学生的主体性也提高到了应有的位置.实施素质教育和技能教育的主渠道就是课堂教学,而学生是课堂教学的主体.受传统教育思想的影响,学生的主体地位一直得不到尊重,学习的积极性和主动性难以调动,学生主体性的发展被压抑.本文就工程力学课堂教学学生主体性缺失的表现进行深入探讨、分析原因,并提出发挥学生在工程力学课堂上主体性的策略.     

浅谈民族预科生的数学"扶贫"教学

本文根据民族预科生的特点,提出对数学成绩差的学生要进行"扶贫"教学,并从四个方面进行教学(1)要采用特殊的教学方法;(2)要加强基本知识的辅导;(3)要挖掘数学中美的因素,提高学生的数学审美能力;(4)要培养提高学生的数学语言能力,减少学习阻力.     

生态观下数学课堂教学中几个问题的探讨

数学课堂是进行数学教育活动的主要场所,传统的数学课堂存在诸多生态失衡问题,新课程理念下的数学课堂应从几个方面建立生态平衡:(1)建立多维互动的数学课堂教学模式;(2)注重生态个体的差异性;(3)注重生态系统的开放性,让学生的数学学习走出教室;(4)建立良好的数学课堂生态环境。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the