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Chris Du Feu 《Teaching Statistics》2009,31(3):66-71
A classroom practical exercise exploring the reliability of a basic capture‐mark‐recapture method of population estimation is described using great whale conservation as a starting point. Various teaching resources are made available. 相似文献
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张红旗 《廊坊师范学院学报》2010,(3):80-83
公推直选乡镇长与乡镇党委书记出现的时间、发展现状与趋势、制度依据、选举成本,以及乡镇长与乡镇党委书记在乡镇政权中的作用有明显的不同。在我们看来,直接选举乡镇党委书记,发展的空间更广阔,对乡镇民主建设与乡镇政府职能转型所起的作用更大。 相似文献
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向量也可和数做乘法．向量a与数字A的乘积定义为向量aλ—λa,它的绝对值是向量a的绝对值和数字A的绝对值的乘积, 相似文献
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乔南 《中学数学教学参考》2008,(11)
Vectors may also be multiplied by a number. The productof the vector a by the number λ is defined as the vector a λ=λa, the absolute value of which is obtained by multiplying theabsolute value of the vector a by the absolute value of thenumber λ, i. e. |λa|=|λ||a|, the direction coinciding withthe direction of the vector a or being in the opposite sensedepending on whether λ>0 or λ<0. If λ=0 or a=0, then λ a 相似文献
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McSweeney and her colleagues (e.g., McSweeney, Hatfield, & Allen, 1990) have demonstrated reliable, large magnitude rate changes in maintained operants within daily sessions under a wide variety of reinforcement schedules. The present paper examined the role of schedule of reinforcement, reinforcement rate, and total amount of food access in determining those within-session rate changes. When median rates across birds were considered, all procedures resulted in a brief period of an increasing rate, followed by a modest rate loss across the major portion of the session. However, not all individuals exhibited that pattern. When the amount of food access per session was limited by lower reinforcement rates, shorter sessions, or shorter reinforcement durations, the magnitude of the withinsession rate change was reduced from that occurring without those constraints. Additionally, under the conditions that produced strong within-session rate changes, the magnitude of the within-session rate loss was correlated with the bird’s body weight. These effects are consistent with what is typically labeledsatiation. 相似文献
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The term professional vision points to the many nuanced ways professionals see. This paper traces the development of a professional vision of a researcher and a teacher looking at classroom practices. The researcher’s interest was to capture and study notable aspects of the teacher’s practice. Through a coding scheme, disparate classroom events were organized and analyzed to yield a researcher’s professional vision of the teacher’s practices. For the teacher, through reviewing the video records of his own classroom practices, his professional vision provided a basis for him to reflect and develop professionally. Leveraging on the work of the researcher, he initiated and transformed his own practices. Their collaboration yielded a mutually informed development of professional vision of classroom practices. In juxtaposing the two developments, the researcher and the teacher’s views can be contrasted, their distinctive interests highlighted and common grounds explored. Some implications for developing professional vision are drawn, and it is in the common grounds of the teacher’s professional development and seeing with a goal of enhancing of student learning that hold some promise of a mutual interest in developing a professional vision of classroom practices. 相似文献
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The concept of metacognition refers to one’s knowledge and control of one’s own cognitive system. However, despite being widely
used, this concept is confusing because of several reasons. First, sometimes it is not at all clear what is cognitive and
what is metacognitive. Second, researchers often use the same term, namely, “metacognition” even when they refer to very different
aspects of this complex concept. Alternatively, researchers may use different terms to indicate the same metacognitive elements.
Another foggy matter is the interrelationships among the various components of metacognition discussed in the literature.
This conceptual confusion regarding the concept of metacognition and its sub-components calls for in-depth theoretical and
conceptual clarifications. The goal of this article is to portray a detailed example of a conceptual analysis of meta-strategic
knowledge (MSK) which is one specific component of metacognition. This specific example is used to draw a general model for
conceptual analyses of additional metacognitive components. The approach suggested here is to begin with a clear definition
of the target sub component of metacognition, followed by a systematic examination of this sub component according to several
dimensions that are relevant to metacognition in general and to that sub component in particular. The examination should include
an analysis of how the details of the definition of the target sub-component refer to: (a) general theoretical metacognitive
issues raised by prominent scholars; (b) definitions formulated and issues raised by other researchers who have investigated
the same (or a similar) sub-component and, (c) empirical findings pertaining to that sub-component. Finally, it should be
noted that since metacognition is a relational rather than a definite concept it is important to situate the context within
which the conceptual analysis takes place. 相似文献
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《化学教学》2 0 0 3年第 5期刊登的《差值思维解题例说》文中 ,例 3的选项设计和分析过程缺乏科学性和严密性 ,特提出与原文作者探讨并和广大读者交流。原题如下 :例 3.物质的量相同的A、B两种有机物 ,只含C、H、O中的二种或三种元素 ,完全燃烧时耗氧量相同 ,则A和B的式量之差 相似文献
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数学实验室是数学专业建设和发展、公共数学教学改革的需要应运而生的,实验室主任或由数学教师兼任或由非数学人员专任.论述了兼职数学实验室主任所承担的工作任务,指出其扮演着的多重角色以及面临的困境. 相似文献
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影响物流中心选址的因素及一种选址方法 总被引：2，自引：0，他引：2
文章论述了影响物流中心选址的七大因素,建议采用模糊评判的方法,该方法克服了传统选址方法的片面性、局限性和计算的复杂性,可对多种可供选择的方案做出明确的排序,使选址问题变得更加合理、科学与全面,更加反映客观实际. 相似文献
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J.P. Powell 《高等教育研究与发展》1987,6(2):197-203
This paper describes how the experience of working in an unfamiliar cultural environment affected the author's basic conceptions of the nature of teaching and learning. A detailed account is given of the ways in which these ideas were incorporated into a course constructed around the notions of experiential and problem‐based learning. It is suggested that the novelty of the setting stimulated a major change in the teacher's perspective on the nature of higher education and that it would be desirable for academics to be given opportunities to encounter unfamiliar contexts for teaching. 相似文献
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萧庆媛 《天津职业院校联合学报》2003,5(1):63-66
作为主要承担德育教育工作的班主任 ,除具有一般教师的基本业务素质外 ,还应具备有较高的政治思想素质和职业道德修养 ,要有广博的知识和善于开展工作的能力。学校要为教师学习深造和开展教改活动积极创造条件。应通过不断加强学习 ,对班主任教师进行实践锻炼和培养 相似文献
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王元祥 《遵义师范学院学报》2006,8(1):39-41
当需要用括号对书名号所标示的文本的性质特点等进行注释说明的时候,书名号的后一半和括号的书写存在着一个先后次序问题。注释书名号所标示的文本的括号,应该放在书名号的后一半的后边,即书名号的外面;注释书名、篇名、报刊名本身或其中的某个词语的括号,应该放在书名号的后一半的前边,即书名号的里面。 相似文献
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Exemplifying definitions: a case of a square 总被引：1，自引：1，他引：0
In this study we utilize the notion of learner-generated examples, suggesting that examples generated by students mirror their
understanding of particular mathematical concepts. In particular, we explore examples generated by a group of prospective
secondary school teachers for a definition of a square. Our framework for analysis includes the categories of accessibility
and correctness, richness, and generality. Results shed light on participants’ understanding of what a mathematical definition
should entail and, moreover, contrast their pedagogical preferences with mathematical considerations. 相似文献
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下面是北京五中特级教师梁捷老师于 2 0 0 0年 1 0月 1 1日随堂上的一节鲁迅的《拿来主义》课堂教学的几个片断 :片断一 :梁老师面带微笑地走进教室 ,在正式分析课文前 ,她要求学生做三件事 :一是按往常惯例她随意从题签盒里抽出一道由学生们自己早已出好的演讲题 ,念完题签内容 ,由学生们推选演讲人上讲台即兴三分钟演讲 ;二是她也按惯例训练学生听话、速记 ,这次她念的速记内容是从《哈佛智商训练》中选的一段文字 ,每句话她只读一遍并让学生注意摸索速记的规律。这段文字的内容 :是“切记 ,观念跟形容它的字眼儿有密不可分的关系 ,别放过… 相似文献