体育教学中实施“研究性学习”之我见

体育教学中加强研究性学习,旨在挖掘、培养学生的学习兴趣和探索问题的能力,不断的提高教学质量。致力于理论思考和对体育教学实践的探索,期望“研究性学习”在《体育与健康》课程新大纲、新教材的教学中的应用将更加成熟、更加理性。     

高师体育理论课开展"研究性学习"的教学设计探析

从教学设计和体育理论课研究性学习教学设计的特点出发,研究探讨了在高师体育理论课教学中开展的“研究性学习”的教学设计模式.     

浅谈体育教学中“研究性学习”

目前研究性学习已作为一门课程来开设,学科课程也在努力探索研究性学习的开展,以便从根本上改变学生的学习方式,在实践中有的教师尝试把学科教材分解成许多小专题,供学生研究,有的教师摈弃接受性学习,将探索性学习贯穿学科教学的始终,也有的教师在学科教学带领学生尝试搞课题研究等等,这些都是在学科中开展研究性学习的大胆探索,那么,在体育教学中开展研究性学习有什么意义呢？如何开展研究性学习呢？文章就这些问题与广大体育教育工作者共同探讨。     

论研究性教学在光电材料导论课程的必要性

"研究性教学"模式,教师的角色发生变化,由"完全教授"角色转变为"导师"角色,指导学生进行"研究性学习",学生在"研究性学习"的过程中,更加积极主动地参与学习,学生具有独立思考、自由探索、勇于创新的特质。《光电材料导论》课程的内容更新快,有很多前沿的科学热点,需要学生进行思考和研究,所以将"研究性教学"的模式应用到《光电材料导论》课程的教学中,可以培养学生的创新性,为国家培养创新型人才,这也正好适应满足了这个时代和国家对人才的要求。     

构建网络互动平台,开展课程"研究性学习"

"研究性学习"课程的实施自2006年以来,福建省各校已进行了近五个年头的探索了,但由于城乡差异,校情不同,各校这门课程的开设发展很不平衡.有的学校"研究性学习"课程的学习就等同于一篇小论文,基本上流于形式,学生没有过程的体验和能力的升华.     

高校体育教学研究性学习探讨

研究性学习运用于高校体育教学，为学生创建了一种开放的学习环境，提供了多渠道获取体育知识和基本技能的途径，不仅是体育学科建设的必然，也是研究性学习的有机组成部分。文章从分析研究性学习的涵义作为切入点，探讨了高校体育教学研究性学习的特征，对体育教学研究性学习的开展提出科学、合理的建议，旨在为提高高校体育教学质量，促进素质教育的更高层次发展。     

体育教学中的研究性学习创设

体育教学中研究性学习是指学生在教师的指导下,表明了学习活动中的师生关系,在学习活动中,学生需要的是教师的指导和帮助,不仅仅是传统教学中的接受或教导。教师的主要职责是创设一种有利于研究性学习的情景和途径。1.创设研究性课堂教学充分利用体育教材中的内容引导学生进行研究性学习。     

论研究性学习在体育教学中的组织实施与指导

运用文献资料、专家咨询、教育观察、逻辑推理等研究方法,在对体育教学中组织实施研究性学习的必要性与可行性进行分析的基础上,重点探讨了研究性学习在体育教学中的组织实施与指导:创设情境,提出问题;发动引导,传授策略;开展研究,得出结论;展示交流,评价反思,并提出体育教学中组织实施研究性学习应注意的问题.     

"反思性"教学法在高校排球教学中的运用

为了提高体育教学的有效性和合理性,对教学反思的内涵进行了论述,并通过案例分析的形式对排球技术、战术教学内容进行课前、课中和课后设计.变"授受式"教学为"启发性教学",引导学生"自主学习、学会学习",使学生的体育学习经历与体验同理性思考有机结合,最终实现"学会教学"和"学会学习"的统一.     

高中数学教学中"研究性学习"的现状和实践

通过问卷调查、个别访谈、研讨会等方式对高中数学教学中“研究性学习”的现状和实践有了基本了解.由于高考不考“研究性学习”的内容,使得一些高中生和教师对“研究性学习”不够重视.这说明了一些数学教师的数学教育理论水平亟需提高.现在高中数学教学中“研究性学习”遇到的问题形形色色,极有研究的价值.本文的研究对高中数学新课程改革中的“研究性学习”的研究和实践将会提供有益的借鉴.     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

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