小学数学课堂教学中有效情境的创设探讨

在小学阶段的数学课堂教学中,利用创设情境进行相关的教学已经是一种非常普遍的教学方法,大量的老师都在使用这种方法,因为情境教学法非常符合小学阶段的学生的身心发展特点,可以帮助学生更好的融入课堂教学,在提高课堂教学的趣味性的同时,帮助学生更好的理解所学的内容。所以对于在课堂教学中创设有效的情境,一直是一个非常受老师关注的话题。

将德育教育渗透在小学英语教学中的策略

近年来,我国发生了许多学校暴力事件。因此,人们越来越重视对学生的德育工作。小学教育作为我国九年义务教育的重要组成部分,对于学生德育的价值尤为重要。长期以来,小学英语教育很少涉及德育,为了促进我国小学生德育的发展,本文通过分析实施德育的重要性,研究小学英语教育在德育渗透中的应用,讨论了具体方法的实现。这些研究对德育的发展和小学英语教育的发展具有重要的意义和实用价值。

创设良好的精神环境对幼儿的重要性

一个人的道德情操、思想境界主要是受其所接受的精神环境的影响形成的。努力创设与教育相适应的良好精神环境,是促进幼儿身心和谐发展,促使顺利完成各种智能和非智能目标的一个重要前提。

以新闻节目创新守好县级舆论宣传主阵地

近年来,受微信公众号、抖音、快手等新媒体的影响,县级广播电视台的收视率直线下滑,新闻节目内容呈现出内容同质化、形式单一、时效滞后等现象,严重影响了新闻传播力。为守住县级新闻宣传舆论主阵地,县级广播电视台应该大刀阔斧改革新闻节目内容,创新新闻节目形式,挖掘新闻线索价值,努力突破电视线性传播瓶颈,采写、播出群众喜闻乐见的电视新闻节目,进一步提高新闻公信力和节目收视率。

Medium modifications of girth distributions for inclusive jets and Z0+jets in relativistic heavy-ion collisions at the LHC

In this paper,we investigate the medium modifications of girth distributions for inclusive jets and Z^0 tagged jets with a small radius( R=0.2 )in Pb+Pb collisions with √s==2.76 TeV at the LHC.The partonic spectra in the initial hard scattering of elementary collisions are obtained by an event generator POWHEG+PYTHIA,which matches the next-to-leading order(NLO)matrix elements with parton showering,and the energy loss of a fast parton traversing the hot/dense QCD medium is calculated by Monte Carlo simulation within the higher-twist formalism of jet quenching in heavy-ion collisions.We present the model calculations of event normalized girth distributions for inclusive jets in p+p and Pb+Pb collisions at √s=2.76 TeV,which give good descriptions of ALICE measurements.It is shown that the girth distributions of inclusive jets in Pb+Pb are shifted to lower girth regions relative to those in p+p.Thus,the nuclear modification factor of girth distributions for inclusive jets is larger than unity at small girth regions and smaller than unity at large girth regions.This behavior results from softer fragments inside a jet as well as the fraction alteration of gluon/quark initiated jets in heavy-ion collisions.We further predict the girth distributions for Z^0 boson tagged jets in Pb+Pb collisions at √s=2.76 TeV and demonstrate that the medium modification on girth distributions for Z^0 tagged jets is less pronounced compared to that for inclusive jets because the dominant components of Z^0 tagged jets are quark-initiated jets.

p_(T) dispersion of inclusive jets in high-energy nuclear collisions

In this study,we investigate the impact of jet quenching on the p_(T) dispersion(p_(T)D)of inclusive jets(R=0.2)in central Pb+Pb(0%-10%)collisions at √s=2.76 TeV.The partonic spectrum in the initial hard scattering of elementary collisions is obtained by an event generator POWHEG+PYTHIA,which matches the next-to-leading order(NLO)matrix elements with parton showering,and the energy loss of a fast parton traversing through hot/dense QCD medium is calculated using Monte Carlo simulation within the Higher-Twist formalism of jet quenching in heavy-ion collisions.We present model calculations of the normalized p_(T)D distributions of inclusive jets in p+p and central Pb+Pb collisions at √s=2.76 TeV,which offer good descriptions of ALICE measurements.It is shown that the p_(T)D distributions of inclusive jets in central Pb+Pb collisions shift significantly to a higher p_(T)D region relative to those in p+p collisions.Thus,the nuclear modification ratio of the p_(T)D distributions of inclusive jets is smaller than unity in the small p_(T)D region and larger than one in the large p_(T)D region.This behavior is caused by a more uneven p_(T) distribution for jet constituents as well as the fraction alteration of quark/gluon initiated jets in heavy-ion collisions.The difference in p_(T)D distribution between groomed and ungroomed jets in Pb+Pb collisions is also discussed.