Optimizing Teacher-Student Collaborative Assessment in the Production-Oriented Approach:A Dialectical Research

Teacher-student collaborative assessment(TSCA)aims to address the challenges of responding to students’work in the Production-Oriented Approach:low efficiency and poor effectiveness.As part of a bigger project carried out in a Chinese university over a period of three years,the present study explored how the teacher prepared and implemented TSCA in class,especially with a focus on how she determined the assessing objective and worked collaboratively with her students in class to achieve it,using the students’written and translated texts as examples.By adopting the dialectical research(DR)method,this paper collected qualitative data such as teaching plans,classroom recordings,and reflective journals of the teacher-researcher(the author),along with students’written drafts and translated texts.TSCA theory and classroom practice have been refined simultaneously by means of putting theory into practice and reflecting upon it.The optimized pre-class and in-class procedures may shed some light on applying TSCA to L2 classrooms.

Changes in Argumentation Performance:Effects of Teacher-Student Collaborative Assessment

This paper compares the effectiveness of one-semester-long instruction of teacher-student collaborative assessment(TSCA)and trained peer review assessment(TPRA).Dependent variables include occurrence of structural elements of the simplified Toulmin model,and improvement of argumentation substance which refers to the quality of reasoning reflected in Toulmin structural elements.Eighty-one sophomore English majors from TSCA group(n=41)and TPRA group(n=40)were asked to construct two argumentative essays at both the beginning and the end of the semester.The results reveal that the TSCA group produced significantly more counterargument claims and rebuttal data.Additionally,the TSCA group significantly outperformed TPRA group in constructing stronger counterargument claim,rebuttal claim and rebuttal data.

A Qualitative Study on Teacher-student Collaborative Assessment in College Students’ Oral English

This article examines the application of Teacher-student Collaborative Assessment in college students’oral English.Qualitative Study data were collected during 16 weeks teaching practice and included the students’and the examiner’s interviews.The result indicates that most students’oral English has been improved.They prefer this assessment model,and their English learning interest and proficiency has been enhanced as well.

Effect on Collaborative Assessment on Language Development and Learning

This paper reports on a study investigating the impact of collaborative assessment on language development and learning. It involves two groups of sophomore students at Dalian Finance University. Two questions were explored: 1) what benefits and difficulties exist in collaborative assessment? 2) what effects does collaborative assessment have on learning?The paper begins with an account of the procedures adopted for the study, followed by its finding and discussion of the findings which is a evidence which points to a shift of participants' role from passive learner to active participant as well as change in the use of learning strategies.

A Sentinel-Based Peer Assessment Mechanism for Collaborative Learning

This paper introduces a novel mechanism to improve the performance of peer assessment for collaborative learning.Firstly,a small set of assignments which have being pre-scored by the teacher impartially,are introduced as“sentinels”.The reliability of a reviewer can be estimated by the deviation between the sentinels’scores judged by the reviewers and the impartial scores.Through filtering the inferior reviewers by the reliability,each score can then be subjected into mean value correction and standard deviation correction processes sequentially.Then the optimized mutual score which mitigated the influence of the subjective differences of the reviewers are obtained.We perform our experiments on 200 learners.They are asked to submit their assignments and review each other.In the experiments,the sentinel-based mechanism is compared with several other baseline algorithms.It proves that the proposed mechanism can effectively improve the accuracy of peer assessment,and promote the development of collaborative learning.

Research on the Application of Intelligent Evaluation and Teacher-student Cooperation Assessment System in Teaching English Writing

Low efficiency in teaching and time-consuming in writing evaluation are two big problems for college English teachers.Therefore,it is necessary to create a new teaching model to solve these problems existing in traditional classroom-based teaching.This research adopts the research methods of test comparison before and after the students’composition experiment,questionnaire and semi-open interviews.Empirical research on a new teaching model that integrates the intelligent composition review and reform system represented by Piangai.com and the collaborative evaluation of teachers and students is conducted.The research results show that the new writing teaching model improves the quality of students’writing,promotes students’learning initiative,and enhances students’writing self-efficacy.This writing teaching model provides ideas for solving the problem of time-consuming and inefficient English writing teaching in large classes.

Blockchain Security Threats and Collaborative Defense:A Literature Review

As a distributed database,the system security of the blockchain is of great significance to prevent tampering,protect privacy,prevent double spending,and improve credibility.Due to the decentralized and trustless nature of blockchain,the security defense of the blockchain system has become one of the most important measures.This paper comprehensively reviews the research progress of blockchain security threats and collaborative defense,and we first introduce the overview,classification,and threat assessment process of blockchain security threats.Then,we investigate the research status of single-node defense technology and multi-node collaborative defense technology and summarize the blockchain security evaluation indicators and evaluation methods.Finally,we discuss the challenges of blockchain security and future research directions,such as parallel detection and federated learning.This paper aims to stimulate further research and discussion on blockchain security,providing more reliable security guarantees for the use and development of blockchain technology to face changing threats and challenges through continuous updating and improvement of defense technologies.

Is big team research fair in national research assessments? The case of the UK Research Excellence Framework 2021

Collaborative research causes problems for research assessments because of the difficulty in fairly crediting its authors.Whilst splitting the rewards for an article amongst its authors has the greatest surface-level fairness,many important evaluations assign full credit to each author,irrespective of team size.The underlying rationales for this are labour reduction and the need to incentivise collaborative work because it is necessary to solve many important societal problems.This article assesses whether full counting changes results compared to fractional counting in the case of the UK’s Research Excellence Framework(REF)2021.For this assessment,fractional counting reduces the number of journal articles to as little as 10%of the full counting value,depending on the Unit of Assessment(UoA).Despite this large difference,allocating an overall grade point average(GPA)based on full counting or fractional counting gives results with a median Pearson correlation within UoAs of 0.98.The largest changes are for Archaeology(r=0.84)and Physics(r=0.88).There is a weak tendency for higher scoring institutions to lose from fractional counting,with the loss being statistically significant in 5 of the 34 UoAs.Thus,whilst the apparent over-weighting of contributions to collaboratively authored outputs does not seem too problematic from a fairness perspective overall,it may be worth examining in the few UoAs in which it makes the most difference.

QoE Assessment of Group Synchronization Control Scheme with Prediction in Work Using Haptic Media

This paper proposes a group synchronization control scheme with prediction in work using haptic media. The scheme adjusts the output timing among multiple terminals and keeps the interactivity high. It outputs position information by predicting the future position later than the position included in the last-received information by a fixed amount of time. It also advances the output time of position information at each local terminal by the same amount of time. We deal with two different types of work using haptic media so as to demonstrate the effectiveness of the scheme. We assess the output quality of haptic media for the two types of work subjectively and objectively by Quality of Experience (QoE) assessment. We further clarify the relationship between subjective and objective assessment results.

Analyzing Collaborative Development of E-Commerce and Logistics Based on DEA

In order to know the current collaborative development situation and relationship of E-commerce and logistics, the paper evaluates the whole collaborative development level of Chinese E-commerce and logistics from 2008 to 2014 using the DEA model. Fund, infrastructure, labor and collaborative development are evaluated and analyzed in this model. The research indicates that E-commerce facilitates the logistics development but logistics can’t support E-commerce development well due to the lag effect which leads to lower collaborative development level. So optimizing the ratio of logistics investment and output, promoting logistics service quality and accelerating logistics development have been the key factors for promoting the collaborative development of E-commerce and logistics.

考虑源-荷协同风险的水光互补系统日前优化调度

光电高比例渗透阶段会加剧水光互补系统的源-荷协同难度,并引发弃电风险。由此提出一种考虑源-荷协同日前优化调度方法。首先基于波形分段与出力分区提取光伏出力定性特征,引入耦合云生成光电不确定性场景;然后选取波动量、弃电量评价指标建立日前调度模型,采用波形分阶补偿策略保障负荷跟踪能力与控制弃电风险,并编制发电计划;最后根据实际案例的场景集合求解系统实时运行过程。结果表明:耦合云模型能够在波形与出力两个维度模拟不同鲁棒保守度下的光电不确定性;相对于常规确定性优化,考虑源-荷协同日前优化调度方法能够充分发挥水电与水库调节的灵活性,具有更强的风险承担能力,且输电形式满足源-荷协同要求,可以有效规避弃电风险。

新型电力系统应对极端事件的风险防范与应急管理关键技术

保障电力安全是贯彻落实总体国家安全观的基本要求。当前,我国电力系统正向新型电力系统演进,新能源不确定性、设备低抗扰与弱支撑性等特征变化叠加日益严峻的极端事件威胁,使得提升电力系统弹性、防范电力安全风险成为一项复杂且具有挑战性的工作。该文在详细介绍新型电力系统弹性提升所面临挑战的基础上,从“风险评估—投资规划—预防准备—响应恢复”4个层面归纳新型电力系统应对极端事件的电力风险防范与应急管理技术,系统分析各层面的关键技术与研究重点。最后,对保障新型电力系统电力安全的实现路径进行展望,提出进一步深入研究的方向。

“教学评价素养”的构建:合作研究实践中教师理念发展的个案研究

本研究深入探讨了大学与中学合作模式下的教师发展项目如何推动教师在合作研究实践中实现概念发展的轨迹。本研究以维果茨基和恩格斯托姆的理论为基础,深入探讨了一名中学英语教研员在与教师项目导师和其团队教师共同构建“教学评价素养”研究主题的过程中,不断协商理解科学概念与日常概念的关系。该研究持续两年,收集了多种数据,涵盖了六轮口头辩论与研究报告活动、课堂观察、访谈、日志和研究报告。数据分析显示,教研员的概念发展历程呈现出逐步整合与转变的特点,同时也为其项目的参与教师提供了拓展学习机会,促进了大家集体概念的发展。尽管教师培训项目在推动多模块协同活动、学术与实践相结合的指导以及集体支持方面发挥了至关重要的作用,在充满张力的概念发展过程中,教师仍需要细致入微的指导。

四川省区域协同创新网络体系研究——基于“一干多支,五区共兴”发展战略的思考

在创新驱动经济高质量发展的战略背景下,结合四川“一干多支,五区共兴”的区域协调发展布局,利用熵权法评估四川省各市(州)的创新能力,通过社会网络分析法对四川省创新协同网络进行分析,探究了区域协同创新体系建设的可行路径。研究结果表明:成都市是四川省的创新高地,成都平原整体的创新能力显著强于其他四区,存在明显的断层现象;四川省的创新能力呈现出“中心—边缘”的空间格局,成都市的极点效应辐射范围仅在成都平原内,未能同整个四川的创新系统融合;遂宁、南充、自贡等地的中介作用效果不佳,创新辐射的承接效果较差,未能有效带动四川地区创新能力的发展。基于此,提出要建立成都平原与各区间完备的创新互动机制;强化成都辐射,重视中心节点的承接作用;立足区域特点,促进特色发展;促进创新资源有效配置,实现区域创新一体化发展等政策建议。

基于BIM技术的装配式建筑建设项目安全风险管理及优化

针对传统的装配式建筑管理中存在管理水平粗糙、精细化程度低等问题,研究运用BIM及相关信息技术建立基于BIM相关信息技术的建设项目安全风险管理平台,并设计建筑项目对比实验。研究结果显示未使用BIM技术进行安全管理的3#装配式建筑安全等级为三级,综合确定度为0.65325,而使用BIM技术进行安全管理的5#装配式建筑安全等级为四级,综合确定度为0.7190。综上所述BIM技术能实现装配式建筑建设项目的安全管理的优化,减少施工工程中的事故风险,保障人员的生命安全和财产安全。

智能煤矿综采控制系统双人协同作业情境意识研究

目的探究智能煤矿综采控制系统双人协同作业中个体在不同协同条件下的情境意识(SA)的构建情况,为智能煤矿中人员协同操作模式提供管理的相关依据。方法利用E-prime软件模拟智能煤矿综采控制系统中的采煤机运行状态监控任务,实验模拟四种不同协同场景(单独作业、操作协同、工作交流协同、非工作内容交流协同),利用全局情境意识技术测度被试总体情境意识以及感知、理解、预测三阶段情境意识得分,并验证不同协同条件下双人协同作业模式中个体的情境意识影响差异。结果双人操作协同与工作内容交流协同显著提升个体情境意识水平,并取得较高的工作绩效;在情境意识感知阶段,非工作内容交流协同与其他三组对比情境意识得分显著下降;在理解阶段,工作内容交流组与其他三组均呈现情境意识得分上的显著性差异,且工作内容交流组得分最高;在预测阶段单独作业组与操作协同组和工作内容交流协同组在SA得分上存在显著性差异,单独作业在预测阶段的得分显著低于有协同组。结论相较于单独作业,操作协同、有关工作内容的交流协同能够有效维持个体情境意识和提高绩效水平,但非工作内容的交流协同反而会降低个体情境意识。

文化遗产影响评估(CHIAs)保护利用协同目标及其嵌入机制

从保护利用协同目标入手,对国外的文化遗产影响评估实践进行剖析,总结了广州市文评实践的主要特点,针对文化遗产影响评估工作面临的3大难点——与保护管理系统结合方式复杂、自我完善程度不足、其他力量支撑与保障不足,提出由文化遗产影响评估先予机制、触发机制与保障机制共同构成的本土化文化遗产影响评估嵌入机制。

基于角色合作的TBL教学法在心内科护理实习教学中的应用

目的 探究基于角色合作的以团队为基础的学习(team-based learning,TBL)教学法在心内科护理实习教学中的应用效果。方法 选取2022年7月-11月在重庆医科大学附属第二医院心内科实习的31名心内科护理本科学生为对照组,2022年12月-2023年4月在重庆医科大学附属第二医院心内科实习的31名心内科护理本科学生为试验组。对照组采用传统教学模式,试验组采用基于角色合作的TBL教学法。教学活动结束后,对2组学生的带教效果、管床效果、教学满意度进行对比分析。结果 试验组平均理论成绩为(95.94±2.08)分,操作成绩为(96.13±1.36)分、护理质量评分(95.71±1.72)分,对照组分别为(91.00±2.70)分、(90.03±3.09)分、(90.39±2.39)分,试验组高于对照组,差异有统计学意义(P <0.001)。在出科考核中,试验组护理缺陷发生率为0,低于对照组的9.68%,差异有统计学意义(P<0.05)。试验组患者满意度为100%,高于对照组的80.65%,差异有统计学意义(P <0.05)。在学生的教学评价中,试验组的教学态度、教学形式、教学氛围、教学形式方面观察指标数据均优于对照组,差异有统计学意义(P <0.001)。结论 基于角色合作的TBL教学法可以提高学生的理论成绩、操作成绩及护理质量评分,降低护理缺陷发生率,提升学生教学评价满意度。

英语专业学生师生合作评价情绪体验质性个案研究

本研究采用质性研究方法,探讨3名英语专业学生在师生合作评价中的情绪体验。研究显示,研究对象在这一过程中主要体验了9种学业情绪,其中,焦虑、认同和愉悦情绪体验频次较高,且积极情绪明显多于消极情绪。个案间存在情绪体验差异,集中表现在厌烦、自豪、好奇与满足的情绪体验上。本研究的学生情绪体验视角丰富了师生合作评价相关研究,为一线教师对学生学业情绪的把控提供实证案例。

元宇宙加持下学评协同评价模式探索

学评协同是新兴的教育评价模式,元宇宙为此评价模式的应用和发展提供强有力的技术支持。该文首先总结元宇宙在学评协同评价模式的技术优势。其次,提出元宇宙支持的学评协同应用架构,包括学评协同场景构建、自适应的学评协同评价模型建立和过程驱动的学评协同评价数据展示。最后分析应用架构尚待解决的关键问题,包括多模态学习过程数据的解析与利用、定性和定量评价的综合分析及学习过程数据和评价数据的融合展示。该文的研究成果可为探索新时代教育评价改革,实现未来教育评价高质量发展,提供有益的参考与启示。