数学教学中如何培养学生的创造性思维

创造性思维对于学生学好、学活各门课程有着非常重要的作用,尤其是在数学的教学过程中创造性思维尤为重要。本文就在数学教学过程中怎样培养学生的创造性思维以及培养创造性思维应该注意的问题展开了论述。     

浅议数学教学中培养学生的创造性思维品质

培养学生独立思考、善于提出问题、解决问题以及创造性的探讨精神和发现新事物的品质,是素质教育的重要内容,也是数学教学中一项重要而艰巨的任务.笔者认为把培养学生的创造意识渗透于教学的全过程,是培养学生创造性思维品质的有效途径.一、结合教学介绍数学家思考问题的方法培养学生创造性思维品质数学家解决问题的能力在很大程度上取决于他们创造性思维品质.他们在发现新的数学分支或解决某个难解决的问题时,往往是独特的、标新立异的.因此,在教     

中专数学教学中应注重培养学生的思维品质

中专数学教学的一个主要目的就是:发展学生的思维能力,培养和优化其数学思维品质。论文从思维的广阔性、灵活性、创造性和批判性几个方面阐述了如何培养学生的思维品质,以提高中专数学的教学质量。     

中专数学教学中应注重培养学生的思维品质

中专数学教学的一个主要目的就是:发展学生的思维能力,培养和优化其数学思维品质。论文从思维的广阔性、灵活性、创造性和批判性几个方面阐述了如何培养学生的思维品质,以提高中专数学的教学质量。     

数学教学中如何培养学生的思维品质

在大量的教学实践的基础上,经过反复分析综合,提出数学教学的培养目标。从培养学生的思维品质出发,概括出"培养学生思维的创造性""培养学生思维的发散性""培养学生思维的严密性""培养学生思维的组织性""培养学生思维的深刻性""培养学生思维的批判性"等6个方面内容,提出了数学教学的创新模式,有一定的应用价值。     

试论工程数学的教学改革与实践

简要分析了大学工程数学教学中应注意的问题；工程数学与微积分有着密切的联系，但两者在教材体系、逻辑关系、内容编排、处理方法上也有不同之处。工程数学既是某些专业学生学习专业课程不可或缺的工具，也是培养学生发散思维、创造性思维的载体。在工程数学教学中应加强类比思维、归纳思维、逆向思维和创造性思维的培养，使学生真正理解数学的内涵，真正使工程数学派上用场。     

谈新课标下创造性数学思维品质的培养

义务教育新课标提出数学教育不但要传授数学知识,还要培养学生的思维能力．而创新性是数学思维的核心,从数学思维的品质、思维创造性的含义出发,说明数学思维创造性的重要性,给出说理意识的教育、刻划客观世界和谐意识的教育、形式不变原理的教育等几种培养思维创造性的途径和方法．认为数学思维创．新性是可以培养的,教学中必须因材施教,因人而异．     

数学教学与思维品质的培养

培养创造性的思维能力是现代数学教学最重要的目的之一,大至发明创造,小至解决各种实际问题,包括解答各类数学问题都需要有较强的创造性思维能力。而创造性思维能力的培养与思维品质的培养关系密切。可见思维品质的培养在数学教学中占有非常重要的地位。     

浅谈学生创新思维能力的培养

在数学学习中功能固着、思维定式和思维结构僵化是学生难以形成创造性思维品质的主要障碍.在数学教学中,通过解决数学问题帮助学生克服这些障碍,从而优化学生的认知结构是培养学生的创新能力的有效方法.     

如何在教学中培养学生的思维品质

培养学生的思维品质关系到我国新一代建设者的人才素质，是每一个教育者责无旁贷的任务，在教学中培养学生的思维品质需要学校的重视，更需要教师的有意注意与积极开发，力求在学生思维的灵活性、发散性、创造性方面不断进步。     

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.     

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.     

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.     

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.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

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

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.