学习分析视域下的在线学习动机评估研究

突如其来的新冠肺炎疫情使在线课程的学习效果受到质疑,在线学习动机研究逐渐受到重视。在此背景下,文章以现有研究中主观动机测量模型为基础,梳理出评估学习动机的一级指标,在借鉴学习投入研究成果的基础上,结合在线学习过程中产生的行为数据,确定了评估学习动机的观测指标,并通过机器学习研究得到一种在线学习动机四级分类模型。最后,通过半结构化访谈,文章发现在线学习过程中,近期价值、自主感、工具性、社会关系等与学习动机的形成有较强的正向关系,而情感态度对学习动机的形成影响较弱。文章提出的在线学习动机评估方法可为在线学习平台的设计提供一定的理论参考。     

测量时代的德育评价:难为与能为

现代评价受科学主义影响,以测量为手段,追求绩效的量化和精确性。在德育上,表现为德育测评。德育测评强调指标的量化,评价主体单一,重视评价的工具性。但德育的复杂性和整体性、情感性和内隐性、长期性和反复性、自主性和人文性,使得德育测评陷入困境,如测评到的内容不是真正的德育,忽视德育的内在性,德育评价狭窄化,评价成为一种对人的控制。为此,必须改革德育测评,淡化功利性评价,注重过程性评价,把评价主动权还给师生,强化底线评价标准,创新质性评价方法,使评价回归德育本体,真正发挥评价的育人功能。     

大气环境监测的数字化测量分析

随着社会经济的快速发展,雾霾频繁发生,空气质量超标。大气环境污染已成为全民关注的重要问题。对大气环境进行实时监测,严格测量大气环境变化和质量,是大气环境执法和治理的必要前提。本文对大气环境监测的数字化测量的必要性进行分析讨论,更有效的对环境监测工作进行质量控制,保证监测数据的准确性和可靠性。     

基于最佳反馈系数的恒流型测温调试电路的设计

针对恒流型铂电阻测温电路传统调试方法过程繁杂,并且由于调试过程中的非量化操作具有的不确定性而导致误差大的缺陷,依据最佳反馈系数对应电路最优状态的关系,设计了相应的调试电路,简化了调试过程,提高了调试精度.实验表明,该方法简明实用,准确度高于传统调试方法 .     

Measuring cognitive load and cognition: metrics for technology-enhanced learning

This critical and reflective literature review examines international research published over the last decade to summarise the different kinds of measures that have been used to explore cognitive load and critiques the strengths and limitations of those focussed on the development of direct empirical approaches. Over the last 40?years, cognitive load theory has become established as one of the most successful and influential theoretical explanations of cognitive processing during learning. Despite this success, attempts to obtain direct objective measures of the theory's central theoretical construct – cognitive load – have proved elusive. This obstacle represents the most significant outstanding challenge for successfully embedding the theoretical and experimental work on cognitive load in empirical data from authentic learning situations. Progress to date on the theoretical and practical approaches to cognitive load are discussed along with the influences of individual differences on cognitive load in order to assess the prospects for the development and application of direct empirical measures of cognitive load especially in technology-rich contexts.     

Evaluation of usage of virtual microscopy for the study of histology in the medical,dental, and veterinary undergraduate programs of a UK University

This article describes the introduction of a virtual microscope (VM) that has allowed preclinical histology teaching to be fashioned to better suit the needs of approximately 900 undergraduate students per year studying medicine, dentistry, or veterinary science at the University of Bristol, United Kingdom. Features of the VM implementation include: (1) the facility for students and teachers to make annotations on the digital slides; (2) in‐house development of VM‐based quizzes that are used for both formative and summative assessments; (3) archiving of teaching materials generated each year, enabling students to access their personalized learning resources throughout their programs; and (4) retention of light microscopy capability alongside the VM. Student feedback on the VM is particularly positive about its ease of use, the value of the annotation tool, the quizzes, and the accessibility of all components off‐campus. Analysis of login data indicates considerable, although variable, use of the VM by students outside timetabled teaching. The median number of annual logins per student account for every course exceeded the number of timetabled histology classes for that course (1.6–3.5 times). The total number of annual student logins across all cohorts increased from approximately 9,000 in the year 2007–2008 to 22,000 in the year 2010–2011. The implementation of the VM has improved teaching and learning in practical classes within the histology laboratory and facilitated consolidation and revision of material outside the laboratory. Discussion is provided of some novel strategies that capitalize on the benefits of introducing a VM, as well as strategies adopted to overcome some potential challenges. Anat Sci Educ 7: 389–398. © 2013 American Association of Anatomists.     

基于卓越工程师培养的测控专业实践项目群建设

卓越计划的实施使学生本科阶段在学校学习的时间缩短为3年。武汉理工大学测控技术与仪器专业对卓越工程师培养实践教学体系和教学内容进行了整体优化,探索并实践了基于测控专业关联课程群的实践项目群建设,为卓越计划的顺利实施奠定了良好基础。     

基于层级概念图的心智模型测量研究:以网站商品分类搜索为例

网络界面信息的可理解性影响用户搜索效率,心智模型理论是用户理解的重要研究方向.通过交互设计中表现模型和心智模型的差异理论来解释用户理解与网站信息表达不一致现象的内在机制,并对这一内在机制进行实验观测与分析,探索心智模型测量及其与表现模型相似性测量的方法.本文以电子商务商品分类搜索为背景,对个体心智模型测量方法进行探索,具体通过设计分类搜索模拟实验平台以及层级概念图,记录用户心智模型的动态变化;通过改进现有的字符串相似度计算方法探索以对用户心智模型与网站分类表现模型差异进行评价,由此揭示网站分类搜索中用户心智模型变化的内在特点.     

新高考改革分省命题之测量学挑战与对策

高考综合改革方案的实施给分省命题工作带来挑战。借鉴国际考试行业的成功经验,结合我国国情,就国家课程标准的解读、命题队伍的建设、现代测量理论与技术的中国化问题展开讨论,对做好分省命题工作提出可行的操作性建议。     

体育测量可靠性检验的基本思想与方法

研究目的：探讨体育测量可靠性检验的基本思想与基本方法。研究方法：运用统计学原理阐述可靠性检验的基本思想，根据体育测量的特点，将体育测验分为两种基本类型，按不同类型的测验，讨论了可靠性检验的方法。研究结果和结论：可靠性检验的实质是通过样本对总体可靠性系数进行估计，对于两种类型的体育测验，可靠性检验的方法有本质的不同。建议：在体育测量教科书中，突出可靠性检验的基本思想，明确各种检验方法的适用对象。