博物馆与传承和保护传统手工艺

传统手工艺作为一种重要的化遗产，其有形的物质载体的保护已得到相当重视，而其历史积累的工艺流程、操作技巧、技术经验等无形财产的保护，亟待引起足够的重视。长期以来，博物馆一直是担负科学保护化遗产重任的最有力、最重要的机构，在传承和保护传统手工艺有形的和无形的遗产中，应如何利用自己的设施、人才和经验方面的优势发挥作用，履行应尽的职责?     

现代远程开放教育教与学的行为关系研究

现代远程开放教育模式下的教与学的行为关系,是否朝良性循环的方向发展,是推动教学改革的关键。怎样营造良好的教学行为关系、提高远程开放教育的教育质量、使远程开放教育教与学的关系继续朝健康的方向发展,文章在这方面进行了探索和研究。     

机械零件课程设计的重点应放在运动方案设计的基本训练上

文章通过对机械零件课程设计的分析,提出了该设计的重点应放在运动方案设计的基本训练上.     

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该文简要地论述了定量地衡量科技期刊的３大类１２个指标，并列举了部分实例，指出了这些指标的优缺点及使用条件，这对科学地评价与选择期刊是很有益的。     

相似三角形教学探索

要准确理解"相似三角形"概念,能从相似三角形中写出相似比,熟练掌握相似三角形的判定及性质,熟练掌握相似形中的基本形,并能灵活地运用基本形帮助解题,要让学生成为学习过程中的主人,积极地参与到教学活动中去.     

台球直线球教学中常见的错误分析及纠正方法

对台球直线球教学中常见的错误动作进行了深刻地分析,并根据直线球的技术特点提出了纠正错误动作的方法和应注意的问题.     

电机转子参数振动的稳定性分析

在工程中 ,两极电机转子等具有矩形截面的轴 ,由于不同方向上的弯曲刚度不同而引起振动 ,即使激振频率远离系统自然频率 ,也可能产生较大响应而造成破坏 ,这就是参数激励共振。所以 ,研究参数激励系统的稳定性及其稳定区域 (范围 )是很重要的。本文以非对称刚度转子和实际电机转子截面轴转动时的弯曲振动为例 ,用Floquet理论研究其振动稳定范围     

Children's skill in making predictions and their understanding of what predicting means: A developmental study

The purpose of this study was to describe the development of elementary students' skill in making predictions and of their understanding of what predicting means. The study involved observing and assessing the performance of 167 children on the Physical Manipulation Test (PMT), a test involving the manipulation of science materials and equipment. Children were interviewed about what they understand predicting to mean, how they use it at school and at home, and why they think it is important. For each of the seven topics tested, even the youngest children were able to offer predictions. Accuracy varied with the topic, increasing between Grades 1 and 4 and leveling off after that. The increase in skill involved children's growing ability to attend to patterns discerned through their own observations. Four levels in the development of predicting skill, as it relates to particular topics, are described. Children's understanding of predicting showed steady improvement through Grade 6. Children's awareness of their use of predicting at school and at home, and their ability to explain the importance of predicting, also increased through Grades 1 to 6, with a spurt at Grade 4. Children understood predicting to be an internal process in which one uses knowledge to anticipate a future event; they regarded predicting as an important way of being intellectually involved with the world.