一个实用的网上投票系统

我们为北仑区电信杯网页设计大赛设计了一个主页。该主页界面简单，主要是一些网页大赛优秀作品的链接，并具有在线投票功能，可以让网友参与评分。现已被北仑港网站（http://www.blport.net.cn）选用。本叙述其设计过程。     

音乐教育的数字化

随着电脑多媒体技术的日益成熟，音乐教育的方式也在逐步地趋于数字化，其作用和成就体现在现行音乐教育的各个方面，如钢琴集体课、和声教学课，视唱练耳课以及其他许多可以利用电脑资源的教学课程，这不仅节省了大量的教育资源，同时也改变着传统的音乐教学方式，为现代音乐教育拓展出了更大的空间。     

计算机绘图直接应用于工程制图教学

将计算机绘图直接应用于工程制图的教学实践进行总结,对实际工作有很大的启迪。如何把计算机绘图与传统制图教学有机地结合起来,是当前高等学校工程制图教学中探索的主要内容。     

从神话中走出的丙崽

神话是古老的一种艺术载体,它是表示原始主题的方式之一。20世纪80年代出现的寻根文学的首创者韩少功,在他的作品《爸爸爸》中,通过神话意象在丙崽身上寄寓着丰富的象征意味,隐喻着鸡头寨乡民群体在生存观念上的集体无意识,凸显了他们集体无意识的群体形象。韩少功的《爸爸爸》显示作者深刻的洞察力和强烈的批判精神,富有历史感和时代感。     

Effects of Conceptual Change and Traditional Confirmatory Simulations on Pre-Service Teachers’ Understanding of Direct Current Circuits

The objective of this research is to investigate the effects of simulations based on conceptual change conditions (CCS) and traditional confirmatory simulations (TCS) on pre-service elementary school teachers’ understanding of direct current electric circuits. The data was collected from a sample consisting of 89 students; 48 students in the experimental group who were taught simulations based on CCS, and 41 students in control group who followed the TCS. Subjects in both groups used open source software (Qucs) to simulate electric circuits. All students were administered Electric Circuits Concepts Test (DIRECT), Science Process Skills Test, Physics Attitude Scale, and Computer Attitude Scale before the treatment. Pre-test analyses revealed that there is no significant difference between experimental and control groups in terms of understanding of direct current electricity. After completing 3 weeks treatment, all students received the DIRECT again as a post-test. Analysis of covariance was used. Science process skills and attitudes toward computers were taken as covariates. The results showed that the conceptual change based simulations caused significantly better acquisition of conceptual change of direct current electricity concepts than the confirmatory simulation. While science process skills and attitudes towards computer made significant contributions to the variations in achievement, gender differences and interactions between gender and treatment did not. Eleven weeks later, the DIRECT was reapplied to the students in both groups. Eleven weeks delayed post-test results showed that the experimental group outperformed the control group in understanding of direct current electric concepts.     

Learning outdoors or with a computer: the contribution of the learning setting to learning and to environmental perceptions

ABSTRACT

Background: Outdoor learning and computer-based learning are two different alternatives to in-class conventional teacher-centered learning.

Purpose: This study compares the outdoor learning setting with computer-based learning in class. It examines the influence of the two different learning settings on academic achievements, the learning experience, and pro-environmental perceptions.

Sample: A total of 90 elementary school students (third and fourth-grade classes) participated in the study.

Design and methods: The academic knowledge of the study participants was tested through identical exams for both learning settings. In addition, in each group the students’ perceptions were examined by means of a questionnaire about environmental values and the learning experience.

Results: The study demonstrates that academic achievements in the two settings were similar, but the students expressed more enthusiasm about the outdoor learning experience than about in-class learning. In addition, the outdoor learning setting contributed more to promoting positive environmental perceptions even though students did not learn directly about environmental issues and sustainability.

Conclusions: These findings suggest that learning in the natural environment is valuable: Alongside the fostering of computerized learning, it is also important to promoteoutdoor learning settings and integrate both settings by implementing mobile technologies in the outdoor teaching.     

When screens replace backyards: strategies to connect digital-media-oriented young people to nature

Abstract

Children’s connection to nature (CTN) is declining with each generation, a concerning trend given that CTN is positively linked to wellbeing and environmentalism. A primary cause of this decline is that twenty-first-century youth engage with screens for several hours each day, which to a large extent replaces nature-based play. Researchers have proposed that this change represents a transition in human orientation, particularly in Westernized societies, from nature (biophilia) to digital media (videophilia). Interventions promoting nature-based play must acknowledge digital-media use as a competing leisure pursuit, but the literature presents little guidance for designing programs that will attract young people who are more oriented toward digital media than nature. Drawing on a wide breadth of research, we address this gap through (1) exploring the implications of videophilia for nature-based programming and (2) summarizing recommendations from a narrative literature review for designing interventions that appeal to digital-media-oriented youth.     

大学生计算思维能力培养水平实证研究——以全国大学生计算机设计大赛为例

计算思维是当前计算机教育重点研究方向之一,培养大学生计算思维能力是计算机教育的一项重要内容,通过鼓励大学生参加计算机大赛等综合实践活动,有利于启发和培养学生的计算思维能力。对大赛获奖数据进行分析,得到大学生计算思维能力培养现状。选取近 5 年参赛数据为样本,运用 SPSS 软件对我国高校大学生计算思维培养水平现状进行研究。结果发现,我国在大学生计算思维培养方面取得了积极成果,相关高校表现突出,经验值得借鉴和学习。     

基于关联分析的计算机软件数据挖掘技术

计算机软件蕴含大量工作信息,有效挖掘软件数据信息之间的内在关联是信息时代对软件应用的潜在要求。针对经典Apriori算法挖掘数据效率低、复杂度高的问题,提出一种改进Apriori算法用于挖掘计算机软件数据的关联规则。为计算机软件算法设置双重支持度阈值,即频繁项集与非频繁项集支持度阈值,快速获得强关联的频繁项集;在此基础上基于映射规则重构事务数据库,压缩数据库规模,减少算法的剪枝操作,降低计算机软件数据关联规则挖掘复杂度。以人力资源类计算机软件数据为例展开关联分析测试,结果显示,该算法挖掘的关联信息与人力资源实际管理情况一致,相比经典Apriori算法其效率有所提升。     

谈计算机辅助教学的教学效果及应用原则

现代教育技术特别是计算机辅助教学的应用对于提高教学质量,具有十分重要的意义.教学实践表明,CAI(计算机辅助教学)可以通过多种途径提高教学效果.为达到更好的教学效果应遵循演示型多媒体课件的课堂应用三原则:适度运用原则、适量信息原则、有机结合原则.