基于高光谱遥感特征参数的樟树幼林叶绿素a含量估算模型

以ASD公司生产的手持式野外光谱辐射仪测量樟树幼林的冠层光谱,同时对观测叶片进行叶绿素a含量的测定。利用统计相关分析法,分析了高光谱遥感特征参数与叶绿素a含量的相关关系,在此基础上建立了高光谱遥感特征参数的樟树幼林叶绿素a含量估算模型,并对模型进行了精度检验。结果表明:樟树幼林叶绿素a含量与Db、Rg、Rg/Ro、(Rg-Ro)/(Rg Ro)之间的相关系数达到了0.01极显著性检验水平;建立它们与叶绿素a含量的估算模型,通过精度检验,选择出最适合叶绿素a含量估算的高光谱模型:y=exp[1.027 (-348.942)×Db]。     

浅论刘禹锡咏史怀古诗的艺术个性

刘禹锡是中唐独具特色的优秀诗人,在我国诗歌史上有相当重要的地位,其诗在韩孟、元白诗派外独辟蹊径,自成一派,影响巨大。这与刘禹锡自觉总结诗歌理论是分不开。试以其自己的诗歌理论为指导,以其咏史怀古诗为中心,通过分析其咏史怀古诗内容的旨意含蓄,风格的取境精练、语言警策、想象丰富来显示刘禹锡独特的艺术个性。     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

湘云新论

文章从身世、性格、诗才、爱情婚姻悲剧、思想意义的角度对《红楼梦》中的湘云进行论述,从而赋予其全新的意义.     

素质教育与音乐能力的培养

音乐是以情感人、以美育人的一门艺术。美好的音乐能培养人们高尚的道德情操,丰富人们的感情,美化人们的精神境界,移风易俗莫善于乐。如若低级庸俗的靡靡之音,则能腐蚀人们心灵,败坏社会风气。所以音乐教育对学生的健康成长是有一定影响的。在素质教育中对学生进行音乐能力的培养显得尤为重要。     

高校德育内容建构的历史溯源与审视

高校德育内容是依据高校德育目标的要求加以选择和建构的。它是高校德育目标要求的具体展现。高校德育内容有其独立的历史轨迹。追溯高校德育内容建构的历史轨迹,对于反省和审视高校德育内容建构的经验与教训提供了基础。与此同时,对于合理地建构现代高校德育内容也提供了一个非常重要的历史依据。     

玉部字及其反映出来的中国古代文化

玉部字在甲骨文中已经出现,在金文中逐渐发展繁荣,在《说文解字》中形成了庞大的字族。中国古代文化的发展与繁荣直接体现在玉部字的发展与繁荣中。透过玉部字我们可以看到古代中国的礼文化、审美文化和宗教文化等。     

基于学习者风格的自适应网络教学平台设计

网络教学平台为学习者提供了不受时空限制的个性化学习,但传统网络学习平台往往忽略了学习者的个体差异,导致其学习自主性不高,从而影响了网络教学的质量.自适应网络教学平台运用学习者风格理论对学习者进行分析,动态生成学习路径和构建学习内容,形成适合于学习者学习风格的课程内容组织形式,在传统网络教学平台的基础上更好地体现因材施教的原则,有利于充分调动学生的积极性,提高学习质量.     

Teacher professional development through collaborative action research: impact on foreign English-language teaching and learning

In 2011 we, a group of English-as-a-foreign-language teachers at a secondary school in Argentina, decided to investigate our teaching practices through collaborative action research so as to improve our students’ learning opportunities and thus revitalise English-language teaching in our context. We implemented and evaluated the integration of content and language learning in our classrooms through the development of our own materials. The experience revealed a growth in professional development and how our motivation and autonomy influenced our students’ motivation and language development. In our attempt to disseminate our experience as a group, this report particularly focuses on the evaluation facets of our collaborative action research project so as to encourage other teachers and teacher-researchers to adopt collaborative action research to improve their own practices.     

Teaching the language of mathematics at three levels of an English-medium primary school

This study, situated in a multilingual, English-medium educational context, draws on theory from mathematics and language education to capture teachers’ perspectives on the place of language in their mathematics pedagogy. The benchmark study explored this topic through surveying and interviewing teachers. Additionally, it sought to relate teachers’ views to their practice by focusing on observing three teachers’ mathematics lessons at primary one, three, and five. Findings are that mathematics teachers placed importance on teaching language, being specifically concerned with language as input and comprehension. They taught vocabulary and reading skills in supportive ways explicitly yet differently at the three grade levels. Particularly at the lower levels, teachers contextualised language in the concrete examples employed for mathematics teaching. At all three levels, prominence was given to teaching pupils how to read word problems as well as how to solve them. However, at primary three, a tension was observed between the two aims of teaching mathematical vocabulary and teaching the reading skills for word problems. This paper illustrates the tension and discusses its possible causes.