龙岩中心城市行道树生长调查及应用研究

在龙岩中心城市行道树的树种种类、数量、规格及生长量实地调查的基础上,对14种主要行道树进行生长量分析比较,综合评价它们的适宜性,结果表明大叶榕、菩提、天竺桂等三种适宜性为优秀,樟树、石栗、洋紫荆、海枣、盆架木、黄花槐、桃花心木、木棉等八种适宜性为良好。为龙岩中心城市行道树种的选择提供依据。     

论汉魏时期灾瑞谶纬之“有助文章”

灾瑞谶纬的兴起与流衍，乃是汉人“究天人之际，通古今之变”的结果。它们被广泛用作政论的依据。汉魏史传作品叙述灾瑞，借鉴了先秦以来将灾瑞融入国家兴亡大背景之下的预兆模式。从而形成了奇诡神伟的风格。灾瑞也作为题材，直接成为作品全篇着力描叙的中心对象。谶纬书中对圣王圣人形象的神话描述，亦有其特殊的价值，特别是《春秋演孔图》对孔子的刻画尤为集中而独特。     

Teaching practices linked to the implementation of inquiry-based practical work in certain science classrooms

Around the world, there have been curricula reforms involving the incorporation of the inquiry-based teaching and learning strategy in secondary school science education in general and in practical work in particular. Research in inquiry-based practical work (IBPW) has focused, for example, on aspects of the strategy itself, on teacher professional development, and on classroom teaching and learning based on the strategy. However, the question of the extent to which teaching practices linked to the implementation of practical work are actually inquiry-based, was still to be answered. To draw on the answer to this question to inform professional development practice and research, we focused on the case of physical sciences classrooms in two resource-constrained South African schools. In this regard, we used a conceptual framework based on the Interconnected Model of Teachers' Professional Growth and including a framework of teaching practices. In the data collection, we used a multimethod case study approach and to analyze the data, we combined the inductive and deductive approaches in thematic analysis. The results show that in the initiation, planning, and classroom implementation phases of practical work, many of the teaching practices of participants were inconsistent with inquiry-based teaching and learning, although some other practices were consistent with this type of teaching and learning. At the same time, some of the consistent practices were at a rather low level of implementation. We have discussed the theory-, practice-, and research-based implications of these results, in relation to the implementation of IBPW in resource-constrained physical sciences classrooms in South Africa and internationally.     

三年自然灾害时期饥饿少女的成长描写——以《平原上的歌谣》中的长玉为例

儿时的苦难是人生的一笔财富,饥饿的痛苦是人生成长中的一种磨炼。著名作家刘庆邦以自己的大姐为原型,在《平原上的歌谣》中精心塑造了长玉的形象。生长在农村的饥饿少女过早地学会了替父母分担家务劳动,劳动使她更像成熟的女人,很快找到自己存在的价值。由于父亲去世,长玉切身体会人世间的世态炎凉,懂事乖巧,勤劳朴实,体贴父母,关心弟妹。面对饥饿,自强不息,乐观向上。     

学案论初探——克服当前教学质量停滞不前的新策略

学案即为教师启发引导学生自主学习的方案,是中西双方教育优势结合的产物。它可彻底打破复习、讲解、巩固、练习、小结和繁重的作业等三环五节所带来的低效重复和层层封锁,实现一种低起点、快节奏、达到一定高难度的教学新格局。从而可在减轻课业负担的前提下大面积大幅度提高教学质量;可适当增加知识的深度、广度、难度;可加快教学进程,三年教学任务可在两年内轻松完成。进而可使中国教育尽快处于世界领先位置。     

北魏旱地农业技术研究

从农具、耕地、选种、播种、田间管理、作物制度等方面探讨了北魏的旱地农业技术。结果表明,北魏旱地农业技术已达到相当高的水平。其后一千多年,中国北方的旱地农耕业并未有实质性的突破。     

大学生反思能力培养的重要性及对策分析

大学生正处于能力培养与人格完善的关键时期,反思对他们思想、行为的成熟以及综合素质的提升有着紧密的联系。正确培养大学生的反思能力,使其把反思当成一种习惯,对大学生的成长有着不可或缺的重要作用。对此,我们应营造良好的社会反思氛围,深化高等教育改革、掀起教学反思热潮,回归学生自我,树立反思从我做起的信条,以此来培养大学生的反思能力。     

The Philosophical Aspects of IRT Equating: Modeling Drift to Evaluate Cohort Growth in Large‐Scale Assessments

Calibration and equating is the quintessential necessity for most large‐scale educational assessments. However, there are instances when no consideration is given to the equating process in terms of context and substantive realization, and the methods used in its execution. In the view of the authors, equating is not merely an exhibit of the statistical methodology, but it is also a reflection of the thought process undertaken in its execution. For example, there is hardly any discussion in literature of the ideological differences in the selection of an equating method. Furthermore, there is little evidence of modeling cohort growth through an identification and use of construct‐relevant linking items’ drift, using the common item nonequivalent group equating design. In this article, the authors philosophically justify the use of Huynh's statistical method for the identification of construct‐relevant outliers in the linking pool. The article also dispels the perception of scale instability associated with the inclusion of construct‐relevant outliers in the linking item pool and concludes that an appreciation of the rationale used in the selection of the equating method, together with the use of linking items in modeling cohort growth, can be beneficial to the practitioners.     

教师之旅：如何在教学实践中反思

教学是一次漫长而有趣的旅行,教师在教学的各个环节中如备课、教学后记、学生反馈等都可以认真反思,以确保教学有成效,教师个人有成长。     

L-苯丙氨酸对铜绿微囊藻生长的作用与机制

应用细胞计数法结合流式细胞术探讨了L-苯丙氨酸对铜绿微囊藻生长的作用与可能机制.结果表明:作用24 h后,较低浓度L-苯丙氨酸(0.078 ～0.312 μg/mL)对藻细胞生长表现为促进作用,而在较高浓度(0.625 ～ 20μg/mL)时表现为抑制作用.L-苯丙氨酸对铜绿微囊藻生长的抑制作用存在剂量效应和时间效应关...