高中物理演示实验教学的创意设计

演示实验是高中物理实验教学的重要组成部分.因此教师应关注物理演示实验教学的创新优化,并以创设实验情境、增加实验互动、强化实验思考、培养实验能力为导向,对演示实验的实验内容、实验环节、实验问题、实验空间开展创意设计,如此可提高物理演示实验的教学品质.     

高中物理演示实验教学的创意设计

演示实验是高中物理实验教学的重要组成部分.因此教师应关注物理演示实验教学的创新优化,并以创设实验情境、增加实验互动、强化实验思考、培养实验能力为导向,对演示实验的实验内容、实验环节、实验问题、实验空间开展创意设计,如此可提高物理演示实验的教学品质.     

生物学实验题实验步骤解答技巧

一个完整的生物学实验题考查内容包括：实验原理、实验目的、实验假设、实验步骤、实验现象、实验结果分析以及实验结论的获得,甚至包括实验前准备。其中实验步骤是一个实验的中心环节,是利用实验原理获得实验结论或者验证实验目的的过程,几乎是每年生物学高考所有实验题都会涉及到的内容。     

电阻测量实验的拓展

电学实验的考查是以课本中实验为原型，在实验目的、实验原理、实验器材、实验步骤、数据处理以及实验组合等方面进行拓展、延伸、变化，使电学实验试题充满新意，源于课本而高于课本，要求能灵活运用直流电路知识，独立选择实验器材，设计实验电路，获得实验结果．     

关于搞好学生实验的几个问题

一、改革实验报告单实验报告单早该改革了,它早已成了学生实验研究中的严重障碍和沉重负担。教师也往往看重这纸片片,宁可实验匆忙草率,实验报告单也要“精益求精”。实验名称、实验目的、实验器材、实验步骤、实验现象、实验结论等等,一应俱全。殊不知,学生     

设计性实验的解答策略与考题分析

设计性实验是在掌握基础实验、基本测量工具之后，完成指定的实验任务而进行的综合实验。它包括确定实验方案、选择实验仪器、拟定实验步骤、调控实验条件、观察记录和处理实验数据、误差分析等等。完成设计性实验，不仅需要一定的理论知识，实验技能，     

高职电子商务专业实验课系统设计新探

本文论述了改进和创新电子商务实验课程系统设计的理论依据和指导思想。并且提出电子商务实验课程系统要素的构成和相互关系。例如：实验预备知识和技能、实验指导思想、实验目的、实验内容、实验流程、实验环境、实验课程管理、实验评估、实验室建设的思路和建议。     

生理科学实景高仿真实验系统的研制及应用

研制具有实验现场感受和接近真实动物实验效果的实景高仿真实验,并建立学生自主实验平台。用数码照相机和摄像机拍摄实验现场、仪器设备、实验操作、实验对象运动并制作成与实验现场一致的仿真实验场景、实验操作和实验对象动画,采用真实的实验数据作为仿真实验数据,用VB合成场景和数据。研制成与动物实验的步骤(除手术、标本制备外)、实验处理、对象反应、仪器、数据测量分析完全相同的33项实景高仿真实验。     

一道设计性实验题的多种解法

设计性实验是在掌握基础实验、基本测量工具之后,为完成指定的实验任务而进行的综合性实验．它包括确定实验方案、选择实验器材、拟定实验步骤、调控实验条件、观察记录和处理实验数据、误差分析等．解答设计性实验题的关键在于设计、选择实验方案．依据的实验原理不同,同一实验也会有不同的方案,设计性实验一般具有开放性的特点,能很好地培养同学们的创造性．近几年考试主要在电学实验方面进行设计性考查,下面看一道实际例题.     

电工电子虚拟实验与真实实验的互补性

联系高等学校电类专业的电工基础实验、模拟电子技术实验和数字电子技术实验的实际情况,讨论了电工电子虚拟实验与真实实验的互补性.在电工电子实验中,充分利用其互补性、虚实结合,对验证理论、加深学生对理论的理解、节省实验学时、扩充实验内容、提高实验的安全程度、降低实验成本以及远程实验等方面具有重要意义.     

天保房地产开发公司发展战略研究

天保房地产开发公司根植于天津滨海新区。依托控股公司带来的资源优势，基于滨海新区列入国家发展战略部署的背景，在近年来取得了迅速的发展。但是随着国家一系列政策的出台，中国的房地产行业面临着一次大的重新洗牌过程，同时企业内部仍然存在着制度缺陷、管理不规范、流程不清晰、人员激励不足等各方面的问题，所以，天保房地产公司在面临着滨海新区良好发展机遇的同时，也面临着很大的挑战。如何在机遇与挑战并存的环境中，认真分析和评估企业的外部环境及内部资源与能力的优劣势，对企业内部的资源与能力进行积累与培养，制定相应的竞争与发展战略，引导企业的健康长远发展具有一定的必要性与迫切性。 本文从竞争战略的角度，综合分析天保房地产开发公司所面临的外部环境和内部条件，研究探讨天保房地产开发公司的发展战略框架，包括战略的指导思想、战略定位、战略目标及相应的实施措施，以期实现天保房地产开发公司的发展愿景和核心价值。     

Burning a Candle in a Vessel, a Simple Experiment with a Long History

The experiment in which a candle is burned inside an inverted vessel partially immersed in water has a history of more than 2,200 years, but even nowadays it is common that students and teachers relate the change in volume of the enclosed air to its oxygen content. Contrary to what many people think, Lavoisier concluded that any change in volume in this experiment is negligible; moreover, the explanation relating oxygen consumption in the air with its change in volume is known to be wrong. In this work we briefly review the history behind the candle experiment and its relationship with some typical erroneous explanations. One of the key factors behind Lavoisier’s success was the use of experiments carefully designed to test different hypotheses. Following these steps, we performed several closed volume experiments where the candle wick was replaced by a capillary stainless steel cylinder supported and heated by a nichrome filament connected to an external power supply. Our recorded experiments are displayed as web pages, designed with the purpose that the reader can easily visualize and analyze modern versions of Lavoisier’s experiments. These experiments clearly show an initial phase of complete combustion, followed by a phase of incomplete combustion with elemental carbon or soot rising to the top of the vessel, and a final phase where the hot artificial wick only evaporates a white steam of wax that cannot ignite because no oxygen is left in the closed atmosphere. After either a complete or incomplete combustion of the oxygen, our experiments show that the final gas volume is nearly equal to the initial air volume.     

指鹿为马

秦二世时,丞相赵高野心勃勃,日夜盘算着要篡夺皇位。可朝中大臣有多少人能听他摆布,有多少人反对他,他心中没底。于是,他想了一个办法,准备试一试自己的威信,同时也可以摸清敢于反对他的人。     

Short a and Long a

Easy Phonics带你学习自然拼读,让你学会字母的发音规律,正确地拼读单词。本期让我们继续来看看、读读、写写重读音节中包含字母a的单词,区分它们读短音short a-/e/,还是长音long a-/ei/。     

Short a and Long a

Easy Phonics栏目带你轻松地学习自然拼读!在读读、听听、拼拼和玩游戏中,你将了解字母的发音规律,并正确地拼读单词。这一期,我们来学习元音字母a的短音(short a)和长音(long a).     

做校长·做学问·做人

从前,有一句话,叫做"吃得苦中苦,方为人上人".这句话被认为动机不纯,怎么可以做"人上人"呢?其实,对于"人上人"可以作不同的理解,一种理解是"骑在人民头上,作威作福",这种"人上人"当然不好;但也可以解释为比别人做更多的贡献,吃更多的苦,经过更多的挫折与困难而比一般人更成熟、更坚强,更知道怎么做人.实际上,对这句话应是作后一种理解的,因为这种"人上人"是与"苦中苦"联系在一起的.     

毕飞宇:一镜、一钟、一影、一胡琴而已

本文从毕飞宇小说中一再出现的镜、钟、影和胡琴的意向入手,考察毕飞宇小说的叙述人称、叙述速度、叙述结构和叙述意图。深入阐释＂我＂与＂他＂的分离与揉合,＂快＂与＂慢＂的交替与演变,＂是＂与＂非＂的分明与模糊,＂语言＂与＂沉默＂的相反而相成。     

Paving a clear path in a thick forest: a conceptual analysis of a metacognitive component

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.     

Have a Picnic in a Park

In spring, it＇s always warm and sunny. People like to go outing. ff＇s sunny today. The Blacks have a picnic in a park. There are many big trees and flowers in the park. They take lots of food with them. There is fruit, drinks, bread and so on.