Learning sorting algorithms through visualization construction

Recent increased interest in computational thinking poses an important question to researchers: What are the best ways to teach fundamental computing concepts to students? Visualization is suggested as one way of supporting student learning. This mixed-method study aimed to (i) examine the effect of instruction in which students constructed visualizations on students’ programming achievement and students’ attitudes toward computer programming, and (ii) explore how this kind of instruction supports students’ learning according to their self-reported experiences in the course. The study was conducted with 58 pre-service teachers who were enrolled in their second programming class. They expect to teach information technology and computing-related courses at the primary and secondary levels. An embedded experimental model was utilized as a research design. Students in the experimental group were given instruction that required students to construct visualizations related to sorting, whereas students in the control group viewed pre-made visualizations. After the instructional intervention, eight students from each group were selected for semi-structured interviews. The results showed that the intervention based on visualization construction resulted in significantly better acquisition of sorting concepts. However, there was no significant difference between the groups with respect to students’ attitudes toward computer programming. Qualitative data analysis indicated that students in the experimental group constructed necessary abstractions through their engagement in visualization construction activities. The authors of this study argue that the students’ active engagement in the visualization construction activities explains only one side of students’ success. The other side can be explained through the instructional approach, constructionism in this case, used to design instruction. The conclusions and implications of this study can be used by researchers and instructors dealing with computational thinking.     

关于发展社区教育的思考

经过数年的努力,我国的社区教育已探索出一条成功之路,但要深化社区教育,取得社区教育的更大成果,又必须有现实的思考,明确几种关系,采取正确的措施,把工作落到实处。     

Student views concerning evidence and the expert in reasoning a socio‐scientific issue and personal epistemology

This study investigated their views concerning evidence and expert opinion of 10th‐grade students, accessed by an open‐ended questionnaire in the context of a socio‐scientific issue: the cause of flood disasters, and personal epistemology identified by the Learning Environment Preference Questionnaire (LEP). Students' responses to the open‐ended questions showed that when thinking about the flood issue, most students rely heavily on direct and numerical data to draw their conclusions, while experts represented a source of conclusive information. The LEP scores indicated that, in terms of epistemological development, students were mostly at the stage of the ‘multiplicists’ in Perry's model. The statistical analysis suggested that view towards evidence and expert were associated with personal epistemology.     

摭谈卓越工程师的计算机科学素养培养

根据新一轮《计算机基础课程教学基本要求》,从我国公民的科学素养调查情况出发,以省属本科高校福建工程学院为例,分析了计算机基础教育现状,提出构建"一主两翼"的课程体系和"三层次四领域"知识体系。提倡将计算思维、信息素养等理念植入计算机教育课堂,进行有针对性的教学模式改进,以培养和提升卓越工程师的计算机科学素养。     

关于真理本质的追问

对真理的澄清和揭示不是对现成摆明到我面前的存在者之是的实在事件所表象出的"真理是"的翻译,因为,就存在者其历史性地存在而言,对真理及其本质的追问和运思就必然把存在者带到存在者的近旁相互照面。此一照面显明了存在者作为存在者整体(共在)之相关存在者归属于世界一体而来的命运的联结。文本的追问表明,真理既不是从意向活动中抽象出来的意见与实在的符合,也不是商业化、市场化时代前提下对所谓受技术理性支配的合理的可接受性的策划,毋宁说,真理作为一种显露标画的乃是思之所思以及命运的广度。     

大学英语阅读能力的培养

本文就如何培养学生的英语阅读能力，如何提高学生的英语阅读水平，提出了具体的方法和措施。主要从三个方面论述：逻辑思维能力的培养；信息自动化处理；阅读材料的选择。     

高职院校内涵发展战略:资源整合

资源整合是促进高职院校内涵发展的有效手段和途径,它具有聚焦、聚强、聚变、聚效功能。在高职院校相对投入不足,整体办学条件亟待改善,资源配置存在不合理状况的情况下,加强资源整合具有重要的现实意义和迫切性。资源整合应坚持有利于促进人才培养质量和特色兴校,有利于充分利用资源、实现增值、整体功能发挥最大化及可持续发展的原则。资源包括有形和无形资源,整合应突出重点,统筹兼顾。资源整合必须采取更新观念,做好自我诊断、创新整合方法,改革管理体制,建立健全长效机制等方法。     

新时期粮食安全观与粮食供给侧改革

粮食安全是事关国家发展与稳定、独立与自主的全局性重大战略问题。我国的粮食安全理念和体系脱胎于计划经济时期,在当前的国内外形势中面临一定挑战。面对新的发展阶段,迫切需要对传统的粮食安全观进行改革,树立新时期粮食安全观,用于指导和助推粮食供给侧改革。文章尝试汇总当前阶段我国粮食供给侧和需求侧的主要形势和面临的问题,阐明当前供给侧改革是树立新时期粮食安全观的重要机遇,应该从理顺政府和市场关系、树立全球视野和双底线思维以及倡导健康与绿色生活方式等方面着眼,为我国粮食安全问题的出路提供科学合理的视角和解决方案。     

价值观匹配与员工创新行为——内部人身份感知和批判性思维的作用

探讨了价值观匹配对员工创新行为的作用机制.结果表明:人-价值观匹配不仅正向作用于员工创新行为,而且通过内部人身份感知间接对创新行为产生显著正向影响;批判性思维正向调节内部人身份感知与员工创新行为之间的关系.     

拓展学生思维 创新数学教学

新课程标准提供的是课堂教学的基本框架,发掘教材内涵,激发学生思维,使学生主动学习、主动探索,这是课堂教学改革的精华所在。本文要从数学课堂教学上去探究：如何激发学生思维的积极性,培养发散思维和打破思维定势,使学生自觉地树立创新意识,培养其创新能力,从而达到创新数学教学的目的。