课程标准理念下学生的创新实践组织和指导

物理学在日常生活、生产实践和科学研究中有着极其广泛的应用.在物理学习中,注重实际问题的分析探究,对于激发学生学习兴趣,拓宽知识面,提高应用物理基础知识解决实际问题的能力,树立一切从实际出发的良好作风,都是十分必要的.     

设计实践探究问题 启迪创新思维

物理学在日常生活、生产实践和科学研究中有着极其广泛的应用.在物理学习中,注重实际问题的分析探究,对于激发学生学习兴趣,拓宽知识面,提高应用物理基础知识解决实际问题的能力,树立一切从实际出发的良好作风,都是十分必要的.     

物理实验教学中创新能力的培养

新课程理念下的物理实验教学,是学生科学探究活动的过程.科学探究活动就是要让学生亲身经历基本的科学探究过程,学习科学的探究方法,让学生在学习中体验物理,在体验中感受物理,从而培养学生发现问题,解决问题的能力,使学生获得终身学习物理的兴趣,养成良好的学习习惯,培养起学习创新能力.真正让学生充分感觉物理的美,体会成功的愉悦.     

物理教学实施探究式学习的三个原则

新课程标准明确指出：“高中物理课程应促进学生自主学习，让学生积极参与、乐于探究、勇于实验、勤于思考．通过多样化的教学方式，帮助学生学习物理知识与技能，培养其科学探究能力，使其逐步形成科学态度与科学精神．”因此，物理教学中探究式学习应着力于学生学习方式的改善，让学生体验科学探究过程，了解科学研究方法，增强创新意识和实践能力；激励学生在教学过程中主动学习和探究精神，调动学生学习的主动性、积极性，促进其个性全面健康地发展和情感、态度、价值观的自我体现．但目前的教学中，仍存在一定的认识误区和实践中的错误倾向．笔者根据对探究式学习的理解和实践认为物理教学的本质是科学的学习，而科学探究是科学学习的核心．可以说，中学物理教学的最终目标应是在学习物理知识的过程中，初步培养学生建立科学探究的意识和能力．为了达到这个目标，应在平时教学中引导学生进行探究式学习．在教学中实施探究式学习还应注意三个原则．     

纸船能装载多少货物?

在初中物理"浮力"一章的教学过程中,为了激发学生学习物理的兴趣,提高学生科学探究的意识,培养学生的自学能力和实践动手能力,我们提前组织了一次造船比赛,收到了意想不到的效果,也使我们首次体会到创新真的能带来巨大的效益.     

物理科学探究性学习应着力开发的几个空间

为了培养具有创新意识和能力的人才,初中物理教学增加了许多探究性学习活动,目的在于使学生通过科学的探究,理解科学知识、学习科学技能、体验科学探究过程与方法,进而理解科学本质,形成科学态度,培养创新意识和实践能力．但实施探究睦学习又学时不够,仅靠压缩讲解时间又不妥．在此情况下,组织学生进行科学探究性学习时就有必要开发以下几个空间。     

谈中学物理教学中科学方法的教育

高中物理新课程标准把"过程与方法"作为物理课程标准的三维度之一.要求教师在引导学生探究学习物理概念和规律的过程中,使学生体会和了解研究物理学的科学方法,能够应用物理知识和方法分析解决一些生活及生产中的物理问题,增强学生的创新意识,发展学生终身学习能力和创新能力.那么什么是科学方法?研究物理问题采用的主要科学方法有哪些?物理教学中又怎样对学生进行科学     

中职物理第二课堂制作报警器教学设计案例

在中职物理第二课堂实践中, 以制作家用报警器作为教学案例, 引导学生开展简易实用的物理小制作, 使物理问题与生活实际相结合, 激发学习兴趣, 增强科学探究的意识, 培养了学生动手解决实际问题的能力, 从中提 高了物理课堂教学效率     

在信息技术环境下开展学生自主的策略探究

自主学习，是指学生不依赖于教师或相关指导者的独立自主的学习过程．普通高中《物理课程标准》指出：“高中物理课程应促进学生自主学习，让学生积极参与、乐于探究、勇于实验、勤于思考，通过多样化的教学方式，帮助学生学习物理知识与技能，培养其科学探究能力，使其逐步形成科学态度与科学精神”，“学生能计划并调控自己的学习过程，通过自己的努力能解决学习中遇到的一些问题，有一定的自主学习能力．”     

简论"合作探究"教学模式在初中物理教学中的应用

新物理课程标准把培养学生的科学探究能力作为一项重要内容明确提出来,强调"物理课程应改变过分强调知识传承的倾向,让学生经历科学探究过程,学习科学研究方法,培养学生的探索精神、实践能力以及创新意识"[1].合作探究教学模式在国外一些学校已得到广泛的应用.然而,对于我们大多数中学物理教师来说合作探究教学模式还是     

关于"太阳在银河系中所受引力与到银心距离r的关系"的讨论

讨论了银道面内的引力场强分布和太阳在银河系中所受引力与到银心距离r的关系，指出引力场强g并不是与r的平方成反比，这是由于银河系的大小和形状不能忽略造成的．强调了万有引力定律的适用条件．     

On the predictability of the positions of the convergence zones in the ocean

The disagreement between the experimental and calculated positions of the first convergence zone are known from many publications. The most probable cause for such a disagreement, namely, the incorrect specification of the input data for the calculations, is considered. The lack of simultaneity between the hydrological surveys of the region and the acoustic experiments is emphasized. The experimental data obtained by the author in five ocean regions are presented. These data characterize the diurnal variability of the distance from the source to the nearest boundary of the convergence zone. The relations proposed by different researchers for calculating the sound speed from the temperature, salinity, and hydrostatic pressure are analyzed. It is shown that these relations lead to a substantial difference in the estimated depth dependence of the hydrostatic gradient of the sound speed. The position of the first convergence zone is calculated for the propagation conditions determined by vertical temperature and salinity profiles with the subsequent recalculation of these profiles into sound speed profiles by using eight different formulas known from the literature. It is shown that different formulas lead to different values of the distance to the first zone; this difference is substantially greater than that between the calculations and experiment. The necessity of improving the recalculation relations in view of the experimental data on sound propagation in natural oceanic waveguides, including the data on the actual positions of the convergence zones, is emphasized.     

On the calculation of the bremsstrahlung in the region of the plasma frequency

On the basis of the classical theory of radiation produced in incomplete Coulomb interaction, a formula is derived for the coefficient of the bremsstrahlung of fully ionized plasma. In the region of rectilinear approximation a comparison is made with the results of the quantum formula derived from the Born approximation. Furthermore, the influence of dispersion upon the emission coefficient is taken into account; some relations for the region of dispersion are given.     

Dependence of the Intensity of the Spectral Lines and the Composition of the Sample and the Plasma Parameters of the Unipolar Arc

The investigation was made of the dependence of the intensity of Tl, Ga, Mo, Mg, Mn, Sn, Bi, Ni, Zn, Pt and Au spectral lines and the plasma parameters (temperature T, electron concentration n_e, degree of 6 ionnization α) from concentration of lithium additive.     

Extracting the wavefunction of the LSP at the LHC

We consider associated production of squarks and gluinos with the lightest supersymmetric particle (LSP), or states nearly degenerate in mass with it. Though sub-dominant to pair production of color SU(3)-charged superpartners, these processes are directly sensitive to the wavefunction composition of the lightest neutralinos. Exploiting event-shape variables - including some introduced here for the first time - we are able to identify the composition of the LSP by selecting events involving a single high-pT jet recoiling against missing transverse energy. We illustrate the proposed technique on a set of benchmark cases and propose methods for applying these results in more realistic experimental environments.     

Set the controls for the heart of the Sun

In this paper we describe experiments conducted with high-power lasers that are attempting to replicate, for a very short time and in miniature, conditions found in the Sun. Experiments to date have reached conditions in the outer part of the Sun. To reach the Sun's centre requires compression of material to very much greater than solid density and heating to over ten million degrees. To achieve this, a new class of experiments and a new generation of high-power lasers are required.     

On the Question of the Source of the Apokamp

Technical Physics - The object of this work is the apokamp—a new type of plasma jet, which is formed from a bright offshoot emerging at the bending point of a channel of a high-voltage...