Using Concept Maps in Teaching Operations Management Courses

Teaching quantitative subjects such as operations management (OM) can be quite challenging. In this article, we present a novel approach that uses simplified concept maps for teaching OM. This application of concept maps was investigated to determine if it helps students to answer questions and to solve OM problems more effectively. Our study used a controlled experimental design with students divided into two groups, one taught using concept maps and another group taught using traditional techniques. Student learning was measured with pre‐ and posttests consisting of both multiple‐choice and constructed‐response items. The performance of the two groups was compared using an independent samples t‐test and analysis of covariance to control for the covariate “pretest.” The results indicate that use of simplified concept mapping significantly improved student learning of OM course material. We therefore recommend its adoption as an active‐learning pedagogical technique that can lead to positive change in the OM classroom.     

Using Concept Maps to Facilitate Collaborative Simulation-Based Inquiry Learning

This study investigates the effect of a shared concept-mapping task on high school students' learning about kinematics in a collaborative simulation-based inquiry setting. Pairs of students were randomly assigned to a concept-mapping condition (12 pairs) or a control condition (13 pairs). Students in the concept-mapping condition had a computer-supported collaborative concept-mapping tool that aimed to integrate concepts and propositions. Students in the control condition used the same learning environment without the concept-mapping tool. Students' interactions with each other and with the simulation were tracked by log files. Learning was assessed with tests of intuitive and structural knowledge and a proposition test. Students in the concept-mapping condition exchanged significantly more chat messages related to experimentation, interpretation, and drawing conclusions and were more engaged in integration-oriented consensus building, which regression analysis showed to be positively related to learning gains for both intuitive and structural knowledge. Students in the concept-mapping condition outperformed their peers on the intuitive and structural knowledge tests. These results suggest that concept maps can positively influence consensus-building activities and learning in a collaborative inquiry-learning setting. The findings of the current study thereby contribute to the ongoing debate about (shared) graphical representations as scaffolds for collaborative learning.     

Using Concept Maps to Aid Analysis of Concept Presentation in High School Computer Textbooks

In this study we use concept maps as the tool for examining concepts presented in three high school computer textbooks. All three textbooks were endorsed by Taiwan's Ministry of Education (MOE). The concepts relating to CPU was selected as a sample for analysis. Two high school computer teachers first worked independently and then together to draw concept maps for each of the textbooks. Our analysis revealed that the textbooks did not cover the important concepts appropriately and failed to address the connections between the concepts. While all three textbooks elaborated on some concepts using examples, only a few analogies were used. The study also showed that concept maps can be an effective tool for analyzing the conceptual framework of important concepts within a textbook.     

运用量规评估学生业绩

近年来,量规已成为业绩评估中备受推崇的一种评估工具.量规不仅有助于教师向学生澄清学习任务和目标,促进学生对任务目标的理解,而且还能给学生提供有效的信息反馈,监控任务的进展过程,同时还能确保业绩评估中的公平性和公正性.从概括介绍业绩评估着手,分析量规在业绩评估中的意义,并详细讨论了创建量规的具体步骤,以及判断量规有效性的依据.     

概念地图在幼儿园教学中的运用

概念地图可以帮助幼儿理解概念及概念之间的关系，同时有助于教师了解幼儿的概念掌握水平。教师应帮助幼儿掌握建构概念地图的技巧，给幼儿提供充分观察和动手的机会，遵循从易到难的渐进原则，选择恰当的教学内容，采用多种方式帮助幼儿正确理解概念及概念之间的关系，拓展认识。     

Variability of Estimated Variance Components and Related Statistics in a Performance Assessment

Generalizability theory provides a conceptual and statistical framework for estimating variance components and measurement precision. The theory has been widely used in evaluating technical qualities of performance assessments. However, estimates of variance components, measurement error variances, and generalizability coefficients are likely to vary from one sample to another. This study empirically investigates sampling variability of estimated variance components using data collected in several years for a listening and writing performance assessment. This study also evaluates stability of estimated measurement precision from year to year. The results indicated that the estimated variance components varied from one study to another, especially when sample sizes were small. The estimated measurement error variances and generalizability coefficients also changed from one year to another. Measurement precision projected by a generalizability study may not be fully realized in an actual decision study. The study points out the importance of examining variability of estimated variance components and related statistics in performance assessments.     

Using Performance Assessment for Accountability Purposes

Why is there such great interest in performance assessment? Are large-scale performance assessments administratively feasible, professionally credible, publicly acceptable, legally defensible, and economically affordable?     

Analysing Concept Maps as an Assessment Tool in Teaching Physics and Comparison with the Achievement Tests

Concept mapping is a technique that paves the way to represent knowledge schematically. In this research, concept mapping was used as an assessment method on the impulse–momentum topic. The purpose of this study was to determine teacher candidates’ knowledge about understanding of the concepts of impulse and momentum by comparing and contrasting two different methods; namely, students’ concept maps and an achievement test. The mean of teacher candidates’ concept map scores are extremely low when compared with the scores of the achievement test. In addition, it was seen that although a great number of concepts were written down, not many relationships were established between these concepts. There is a weak correlation between the achievement test and the concept map scores since concept maps assess the students’ knowledge from a conceptual perspective while the achievement tests measure the level of students’ knowledge on the topic and his/her ability to apply this knowledge on different occasions.     

用概念图解读合作学习

概念图是用于表征和揭示知识结构中的意义联系的图表,它可以帮助我们解读合作学习的本质及其历史沿革.同时,它还能清晰地展示合作学习诸多方法,如STAD(小组成绩分工法)、TGT(小组-游戏-竞赛法)、Jigsaw(切块拼接法)、LT(共学式)及GI(小组调查法)的教学模式,以增加实施的可操作性.     

大学力学概念图的制作

文章首先介绍了一般概念图的六个组成成分:概念、分支、水平层次、同一分支下概念间的连接线和连接语、不同分支下概念间的连接线和连接语、例子;在此基础上,介绍了制作大学力学概念图时对一般概念图所进行的改进措施,而后以大学力学知识概念图实例为基础,总结了制作大学力学概念图的具体步骤;文章以多个大学力学概念图制作的范例为依据,论证了制作大学力学概念图应该遵循的原则.     

电磁学概念图的教学研究

阐述了电磁学概念图的制作及时电磁学教学的作用,认为概念图有助于优化教学内客及评估体系,提高教学质量,有助于激发学生的创新意识,提高学生成绩.     

概念图的布局算法研究

概念图是一种有效的知识可视化工具,而概述图的布局是影响其信息传递能力的重要因素,因此布局算法是实现概念图工具的重要技术基础.本文在Sugiyama层次布局算法的基础上,针对概念图的特点和布局要求,提出了一种概念图的布局算法：首先对概念图的概念节点和关系节点进行简化处理,然后应用Sugiyama层次布局算法的第一步（分层）,并对图中的关系节点进行特殊处理,调整分层,最后应用Sugiyama层次布局算法的“交叉减少”和“坐标分配”模块,得出概念图各个节点（包括概念节点、关系节点和虚拟节点）的坐标,最终得出概念图的布局.该算法已通过编程实现,并成功应用于我们自主研发的概念图工具软件中.     

物理概念图的制作

介绍了制作物理概念图时对一般概念图所进行的改进措施，以物理概念图实例为基础，总结了制作物理概念图的具体步骤；以多个物理概念图制作的范例为依据，论证了制作物理概念图应该遵循的原则．     

概念图及其在数学学习中的现实意义

概念图是用来组织与表征知识的工具.在数学学习中概念图具有重要的现实意义,它可以激励学习者主动建构概念,培养元认知知识和自主性,激发猜想并检验猜想等.学习制作概念图时,要注意:布置任务的形式由结构化逐渐转向弱结构化;概念图制作时应首先集中在一个主题,然后再与其它概念图或主题相连接.     

方差分析在汽车主观评价中的应用

在主观评价的结果分析中,方差分析能够分辨出参与主观评价人员的个体特征对评价结果的影响,从而更真实地反映出车辆之间的真实差异.使用SPSS软件,采用方差分析的统计学方法,对4款轿车的悬架舒适性主观评价结果进行分析.结果表明,驾龄在4~15年之间的人员,更能够得到相对一致的评分结果,过高和过低的驾龄,会导致评分的过高和过低.驾龄没有与车型之间产生交互作用,可以排除驾龄与车型对评价结果的交互影响.     

Studying and Constructing Concept Maps: a Meta-Analysis

A concept map is a node-link diagram in which each node represents a concept and each link identifies the relationship between the two concepts it connects. We investigated how using concept maps influences learning by synthesizing the results of 142 independent effect sizes (n = 11,814). A random-effects model meta-analysis revealed that learning with concept and knowledge maps produced a moderate, statistically significant effect (g = 0.58, p < 0.001). A moderator analysis revealed that creating concept maps (g = 0.72, p < 0.001) was associated with greater benefit relative to respective comparison conditions than studying concept maps (g = 0.43, p < 0.001). Additional moderator analyses indicated learning with concept maps was superior to other instructional comparison conditions, and was effective across science, technology, engineering, and math (STEM) and non-STEM knowledge domains. Further moderator analyses, as well as implications for theory and practice, are provided.     

关于概念图在数学教学评价中的应用研究问题

概念图是组织和表征知识的工具,它的节点、连线、层级、分支和交叉连接都可以用来检测学生的学习.数学概念之间的关系可以拓展为对象与对象、对象与过程,或是过程与过程等之间的复杂关系,也牵涉到与运算之间的关系.概念图的评价形式有读图改错题、填图题和构图题.不同形式的概念图检验试题可以设计不同的评分标准,有节点连线评分法、编码评分法和等级评分法.     

Learning from Animated Concept Maps with Concurrent Audio Narration

An animated concept map is a presentation of a network diagram in which nodes and links are sequentially added or modified. An experiment compared learning from animated concept maps and text by randomly assigning 133 undergraduates to study 1 of 4 narrated animations presenting semantically equivalent information accompanied by identical audio narration. Two of the animations presented text; one with concurrent audio and another with delayed audio. Two of the animations presented concept maps; one in black and white and the other with nodes colored to represent semantic relatedness. The concept map groups outperformed the text groups on free recall (p < .05). The black-and-white concept map group outperformed the text groups on a multiple-choice knowledge test (p < .05). No advantages were statistically detected for color enhancements of the animated map. The results indicate that verbal information can be effectively communicated by learner-paced animated concept maps accompanied by audio narrations.     

概念图在高中生物学教学评价中的应用

高中生物学新课程改革教学评价强调学习过程的评价,关注评价促进学生发展的功能。利用概念图进行教学评价已成为一个热门的话题,它以不同形式广泛适用于生物学课堂内外的各个评价阶段。把概念图作为评价工具应用于生物学教学评价可以促进学生建立良好的知识结构,促进学生情感的发展。概念图评价工具仍有许多有待探讨的问题,它并不能替代一切。