工程电流源综述

在信号变换及电子测量中，电流源应用广泛，其性能优劣及结构特点对测量结果有直接影响。因此，在电子测量控制工程设计中应正确选用电流源电路结构及参数。     

负反馈放大器回归比的测试

不论何种类型的负反馈放大器，只要在反馈环路某点处断开反馈环，测试出反馈放大器的回归比，就可方便地分析研究负反馈对放大器性能的影响．     

An empirical review of anonymity effects in peer assessment,peer feedback,peer review,peer evaluation and peer grading

Abstract

Peer assessment has proven to have positive learning outcomes. Importantly, peer assessment is a social process and some claim that the use of anonymity might have advantages. However, the findings have not always been in the same direction. Our aims were: (a) to review the effects of using anonymity in peer assessment on performance, peer feedback content, peer grading accuracy, social effects and students’ perspective on peer assessment; and (b) to investigate the effects of four moderating variables (educational level, peer grading, assessment aids, direction of anonymity) in relation to anonymity. A literature search was conducted including five different terms related to peer assessment (e.g., peer feedback) and anonymity. Fourteen studies that used a control group or a within group design were found. The narrative review revealed that anonymous peer assessment seems to provide advantages for students’ perceptions about the learning value of peer assessment, delivering more critical peer feedback, increased self-perceived social effects, a slight tendency for more performance, especially in higher education and with less peer assessment aids. Some conclusions are that: (a) when implementing anonymity in peer assessment the instructional context and goals need to be considered, (b) existent empirical research is still limited, and (c) future research should employ stronger and more complex research designs.     

Web技术在教学质量信息反馈中的应用

文章从教学质量信息反馈的重要性和传统结果反馈的不足出发，结合Web技术的优势提出如何在高校教学质量监控体系中实现动态、开放、全面地信息反馈。     

大学生思想政治教育过程的优化——基于控制论的方法

大学生思想政治教育的效果在很大程度上依赖于对这个复杂过程的深刻理解。思想政治教育的本质属性决定了价值引导是大学生思想政治教育的主要手段,其过程表现为信息的传递、接受、存储、整合、反馈等环节的循环,符合可控系统的基本特征。运用控制论的观念对思想政治教育过程的各个阶段作全面分析．有利于深化对思想政治教育系统的认识,也是优化思想政治教育过程的新方法。     

高职院校教学状态信息采集、分析、反馈系统探析

高职院校的教学状态信息是反映学校整体运行情况的指标,其收集和处理是否得当是影响教学质量提高的重要因素。基于高职院校教学管理实际,构建教学状态信息采集、分析、反馈系统,并完善其结构、功能、制度体系,从组织、制度、政策等方面建立配套的保障体系,是高职院校内涵建设的创新举措。     

如何利用Writing Roadmap 2.0进行在线英语写作反馈

即时全面的写作反馈有助于提高学生的语言正确率和写作水平。文章首先简要介绍了英语写作反馈类型,随后分析了我国大学英语写作反馈的现状和存在的问题,然后结合教学实例,介绍了在写作教学中如何使用Writing Roadmap 2.0自动评分系统为师生提供多元化反馈,最后阐述了该系统的优势和劣势。     

Evaluating a technology supported interactive response system during the laboratory section of a histology course

Monitoring of student learning through systematic formative assessment is important for adjusting pedagogical strategies. However, traditional formative assessments, such as quizzes and written assignments, may not be sufficiently timely for making adjustments to a learning process. Technology supported formative assessment tools assess student knowledge, allow for immediate feedback, facilitate classroom dialogues, and have the potential to modify student learning strategies. As an attempt to integrate technology supported formative assessment in the laboratory section of an upper‐level histology course, the interactive application Learning Catalytics^TM, a cloud‐based assessment system, was used. This study conducted during the 2015 Histology courses at Cornell University concluded that this application is helpful for identifying student misconceptions “on‐the‐go,” engaging otherwise marginalized students, and forming a new communication venue between students and instructors. There was no overall difference between grades from topics that used the application and grades from those that did not, and students reported that it only slightly helped improve their understanding of the topic (3.8 ± 0.99 on a five‐point Likert scale). However, they highly recommended using it (4.2 ± 0.71). The major limitation was regarding the image display and graphical resolution of this application. Even though students embrace the use of technology, 39% reported benefits of having the traditional light microscope available. This cohort of students led instructors to conclude that the newest tools are not always better, but rather can complement traditional instruction methods. Anat Sci Educ 10: 328–338. © 2016 American Association of Anatomists.     

大学生连续创业团队绩效反馈研究:教育博弈与管理启示

从概念内涵、反馈类型、过程机理、影响因素探究大学生连续创业团队的现状,重点分析由此引发的四种教育博弈,即场域博弈、结构博弈、主体博弈和资源博弈,研究发现:通过机制保障可以实现组织协同,通过课程设计可以实现创业教育;而以实践育人理念坚守初心、以立德树人理念升级"双创",则可以为高校实践育人、创新育人提供策略,同时也为创业组织管理部门提供更多思路借鉴。     

Language use in kindergarten science lessons: language production and academic language during a video feedback coaching intervention in kindergarten science lessons

This paper aims to gain insight into language production and academic language of 4- and 5-year-old students and their teachers in the course of a teacher intervention during kindergarten science education. The study is based on videotaped classroom observations, and specifically focuses on the academic language use of students (N_intervention = 18, N_controls = 26) and teachers (N_intervention = 5, N_controls = 5). The results suggest that this general teacher intervention yields interesting changes in language use and production. Patterns of change over time confirm the idiosyncratic and non-linear nature of these changes. Science lessons represent an appropriate context in which to acquaint students with academic language, which can be used as a basis to build upon more sophisticated language skills.