浅论电视节目主持人的个性凸显

现代社会是一个竞争激烈、创新求变、风格传播和张扬个性的时代。作为电视传媒形象代表的节目主持人,要紧随时代的步伐,其个性风格要以深厚的知识素养为基础,在学有专长的前提下具备多维的知识构架,在表述语言、形态语言、情感语言等诸多方面寻求自己的特色,要把自身的化品格,个性特征与电视栏目的化内涵有机融合,才能在主持工作实践中发挥优长,彰显个性,立于不败之地。     

浅谈数据仓库的应用条件

数据仓库应用的基本条件：1)确定用户的需求特征;2)具有完善的OLTP系统;3)拥有雄厚的技术支持条件,专业技术顾问是成功创建数据仓库的重要保证。     

Informal learning: Student achievement and motivation in science through museum-based learning

This study examined changes in student motivation and achievement in science during a visit to a university children’s science museum. The study was based on the pretest–posttest control comparison group design with four treatment groups: control, exhibit, lesson and exhibit/lesson. The sample consisted of 228 sixth-grade students from a Louisiana public school who were randomly assigned to one of the four experimental groups. Pretest, posttest and delayed posttest measures of intrinsic motivation and achievement in science were obtained using the Children’s Academic Intrinsic Motivation Inventory and an achievement test written to measure areas of science incorporated in the museum exhibits. The data were analysed using a one-way ANOVA, dependent t tests and Pearson r. Significant differences were found within groups for (1) the lesson group in motivation and (2) the exhibit group in achievement from pretest to posttest and from posttest to delayed posttest. A significant relationship between level of motivation and science achievement was revealed for the exhibit group on the delayed posttest. There were no other significant findings to support that the treatment led to any long-term effects on motivation or achievement within any of the four experimental groups.     

面向工程教育专业认证的通信工程一流专业建设

工程教育专业认证是工程教育质量的重要保障制度。以满足工程教育专业认证要求为目标,从修订人才培养方案、优化课程体系、推进实践教学改革、加强师资队伍建设和专业建设质量监控机制建设等方面推进通信工程一流专业建设。     

Anhydrobiosis

In aquatic and moist soil environments subjected to periodic drying, a diverse group of organisms (mostly microscopic) have evolved extreme desiccation tolerance through a physiological adaptation called ‘anhydrobiosis’. Notable among such organisms are tardigrades, bdelloid rotifers, and nematodes. Anhydrobiosis also allows these organisms to tolerate extreme temperatures and ionizing radiation. In this article, the signi-cance and some mechanisms of anhydrobiosis are described.     

在“操作、体验、思辨”中渗透小学数学思想方法

优质的数学课建立在教师对显性知识与隐藏数学思想方法的整体把握,并能在教学中能引导学生经历对数学思想方法感知、理解与应用的全过程,从而帮助学生架设知识联系的桥梁,促进学生能力的提升。如何选准策略,把握契机,合理渗透数学思想方法,是当前数学教育工作者的研究热点。     

Teachers’ Ability to Identify Children at Early Risk for Reading Difficulties in Grade 1

The aim of the study was to investigate what kinds of assessment practices classroom teachers and special educational needs (SEN) teachers use in assessing first grade students' pre-reading skills (letter knowledge and phonological skills). Further, we investigated to what extent teachers were able to identify difficulties in pre-reading skills of the children with the lowest achievement scores. The accuracy of teacher ratings of students' pre-reading skills was studied by comparing teacher ratings to actual test scores. The data from two Finnish longitudinal studies were used: JLD sample (class teachers, n = 91; SEN teachers, n = 51; 200 students) and First Steps sample (class teachers, n = 136; SEN teachers, n = 34; 598 students). Results showed first, that most classroom teachers used qualitative assessment and SEN teachers also relied on tests. Secondly, although teacher ratings correlated with the test scores, closer investigation of sensitivity and specificity of the teacher ratings revealed that a number of children in need of extra support for their early reading development according to test scores remained unidentified. Moreover, there were some students identified by the teacher to have difficulties despite test scores not confirming that. The findings underline the importance for developing more specific and reliable assessment tools for teachers to use for pedagogical purposes, and respectively, the need to pay more attention to early identification of reading difficulties in teacher training program curricula.     

地球上的6次物种大灭绝

1 第一次物种大灭绝——奥陶纪第一次物种大灭绝发生在5亿年前的奥陶纪末期,由于当时地球气候变冷和海平面下降,生活在水体的各种不同无脊椎动物便荡然无存。     

考生身份验证系统在教育考试中的应用

考生身份验证是国家教育考试管理部门对标准化考试考点工作的基本要求,也是构建考生诚信档案、社会诚信档案的重要信息来源。采用先进的人脸生物识别技术与互联网技术,建设考生身份验证系统,有望大大提高教育考试中考生身份验证环节的速度和准确性,在一定程度上减少作弊,净化考场环境,从而提高考试管理水平与服务能力,在技术上为考试的公平公正保驾护航。     

制约中小学课堂运用教育技术的因素分析——美国中小学现代教育技术实施环境调查报告

通过对美国中小学教师进行问卷、访谈调查,研究目前制约中小学课堂教学中运用现代教育技术的几个因素.调查结果表明:教师时间缺乏、电脑网络技术问题得不到及时解决是阻碍教师课堂运用现代教育技术的主要障碍.进一步探索美国城乡之间、年级之间现代教育技术运用的环境是否存在差异,结果显示:郊区学校现代教育技术环境比城市和乡村好,但年级之间无显著差异.