论高职“两课”教学为新农村建设服务的方向

建设社会主义新农村离不开高等职业教育的发展。文章尝试从高职院校＂两课＂教学入手,探索高职院校＂两课＂教学应如何服务于社会主义新农村建设。     

基于校企深度合作环境下土建类专业毕业设计模式的革新

毕业设计是高职院校人才培养过程中的重要教学环节,也是对大学三年学习生涯一次重要而全面的检验。针对当前高职类学校建筑工程技术专业毕业设计中存在的问题,以校企深化合作为契机,聘请企业工程师作为指导老师,完善毕业设计考核评价体系,并结合当前建筑行业的发展和需求,提出相应的改革措施。     

游戏在小学数学教学中的应用研究

新课改注重学生的全面与个性化发展,关注学生在学习过程中的情感体验。数学作为一门抽象性学科,由于小学生缺乏相应的知识基础与生活经验,在具体学习的过程中会出现无法理解的现象。教育游戏是一种将趣味性与知识性结合的教学方式,符合小学生的心理与认知特点,能够充分激发学生的学习兴趣。本文主要对游戏在小学数学教学中的运用效果进行探讨,以确保教学质量的提升。     

基于AR的地理学习活动流程设计

地理学科作为一门拥有着众多复杂地理元素的课程,如何能将复杂的地理元素更好地呈现给学习者一直都是探索的热点问题。增强现实技术作为一种能将虚实进行恰当结合的技术,正好可以契合地理教学中所面临的问题。在国内,增强现实技术作为一种初步应用于教学的技术,其具体应用流程缺乏,本文拟在活动理论的指导下,以实际课堂为出发点,整合增强现实的特点,以体验式学习为教学形式,构建基于增强现实的初中地理学习活动设计流程,尝试这一技术在地理课堂中应用的方式。     

稳中求变,感受命题新常态

文章对比分析了2018年全国Ⅰ卷理综化学试题,从中挖掘试题背后的教育价值,并在此基础上提出了针对高考复习的一些教学建议。     

Convergent genomic signatures of high-altitude adaptation among domestic mammals

Abundant and diverse domestic mammals living on the Tibetan Plateau provide useful materials for investigating adaptive evolution and genetic convergence. Here, we used 327 genomes from horses, sheep, goats, cattle, pigs and dogs living at both high and low altitudes, including 73 genomes generated for this study, to disentangle the genetic mechanisms underlying local adaptation of domestic mammals. Although molecular convergence is comparatively rare at the DNA sequence level, we found convergent signature of positive selection at the gene level, particularly the EPAS1 gene in these Tibetan domestic mammals. We also reported a potential function in response to hypoxia for the gene C10orf67, which underwent positive selection in three of the domestic mammals. Our data provide an insight into adaptive evolution of high-altitude domestic mammals, and should facilitate the search for additional novel genes involved in the hypoxia response pathway.     

Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows

Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.     

启发式教学法在高中生物课堂中的有效应用探析

高中生物课程是高中阶段的重要学科之一,其具有知识点繁杂、内容抽象性强、理解难度大等特点,单纯的理论讲解很难达到理想的教学效果.启发式教学法是一种快速有效的教学方法,能够有效激发学生对生物课的兴趣,强化学生对生物知识的理解,进而有效提升生物课堂的教学效果.文章在教学实践的基础上,对启发式教学法在高中生物课堂中的应用难题、...     

深度学习背景下的初中英语教学策略探究

英语深度学习是对英语课堂教学的一个新探索,是提高英语课堂教学质量、实现英语课堂教学目标、提升学生英语应用能力的有力措施,是英语课堂教学研究和发展的新方向.对于英语教师而言,深度学习强调教师要突破过去英语课堂教学中的思维定式,构建有深度的英语课堂;对于学生而言,深度学习鼓励学生质疑浅层学习,自主进行深入探索和研究.文章从...     

基于职业规划的本科毕业设计培养模式研究

针对高校本科毕业设计教学中所面临的问题,以职业规划为突破口,利用职业规划教育激发学生的学习兴趣和创新思维,为每一位学生提供指导性的职业规划参考方向.对本科生毕业论文选题、创新设计、质量评价等环节进行了分析研究,通过建立师生档案、提前培训、差异性创新培养等方式,对本科生学业方向进行提前布局,针对性地增强学生的知识储备和动...