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Understanding ESL Students' Motivations to Increase MOOC Accessibility 了解ESL学生提高MOOC可及性的动机
Pub Date : 2016-04-25 DOI: 10.1145/2876034.2893398
J. Uchidiuno, A. Ogan, Evelyn Yarzebinski, Jessica Hammer
Massive Open Online Courses (MOOCs) have the potential to bridge education and literacy gaps by offering high quality, free courses to anyone with an Internet connection. MOOCs in their present state, however, may be relatively inaccessible to non-native English speakers, as a majority of MOOC content is in the English language. While a potential solution is to translate all MOOC content into all languages, it is not known whether this solution will satisfy the learning goals of all English as a Second Language (ESL) speakers. Through a series of interviews, we investigate ESL speakers' motivations for taking MOOCs and other online courses. Our findings show that ESL speakers have a variety of motivations for taking online courses that are not captured in current surveys, which implies that current one-size-fits-all approaches to increasing MOOC accessibility for learners with a first language other than English may not be effective. Rather, offering learners individualized tools based on their motivation and needs may be more effective.
大规模在线开放课程(MOOCs)通过向任何能上网的人提供高质量的免费课程,有可能弥合教育和文化差距。然而,由于MOOC的大部分内容都是用英语进行的,因此目前的MOOC对于非英语母语的人来说可能相对来说是无法访问的。虽然一种潜在的解决方案是将所有MOOC内容翻译成所有语言,但尚不清楚这种解决方案是否能满足所有英语作为第二语言(ESL)使用者的学习目标。通过一系列访谈,我们调查了ESL使用者参加mooc和其他在线课程的动机。我们的研究结果表明,ESL使用者参加在线课程的动机多种多样,而这些动机在当前的调查中并没有被捕获,这意味着目前为母语非英语的学习者增加MOOC可及性的一刀切方法可能并不有效。相反,根据学习者的动机和需求提供个性化的工具可能更有效。
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引用次数: 21
Metaphors for Learning and MOOC Pedagogies 学习隐喻与MOOC教学法
Pub Date : 2016-04-25 DOI: 10.1145/2876034.2893385
Karen Swan, S. Day, L. Bogle
The research reported in this paper used a researcher developed tool to categorize the pedagogical approaches used in MOOCs. The Assessing MOOC Pedagogies (AMP) tool characterized MOOC pedagogical approaches on ten dimensions. Preliminary testing on 20 different MOOCs demonstrated >= 80% inter-reliability and the facility of the measure to distinguish differing pedagogical patterns. The patterns distinguished crossed content areas and seemed to be related to what Sfard (1998) identified as metaphors for learning; acquisition and participation approaches seemed to distinguish the pedagogies of differing MOOCs. A third, arguably important, pattern related to self-direction was also distinguished.
本文的研究使用研究者开发的工具对mooc中使用的教学方法进行分类。评估MOOC教学方法(AMP)工具从十个维度对MOOC教学方法进行了表征。在20个不同的mooc上进行的初步测试表明,>= 80%的互信度,以及该测量方法区分不同教学模式的能力。这些模式区分了交叉内容区域,似乎与sard(1998)认为的学习隐喻有关;习得和参与的方法似乎区分了不同mooc的教学方法。第三种,可以说是重要的,与自我导向相关的模式也被区分出来。
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引用次数: 10
Optimizing the Amount of Practice in an On-Line Platform 优化在线平台的练习量
Pub Date : 2016-04-25 DOI: 10.1145/2876034.2893393
K. Kelly, N. Heffernan
Intelligent tutoring systems are known for providing customized learning opportunities for thousands of users. One feature of many systems is differentiating the amount of practice users receive. To do this, some systems rely on a threshold of consecutive correct responses. For instance, Khan Academy used to use ten correct in a row and now uses five correct in a row as the mastery threshold. The present research uses a series of randomized control trials, conducted in an online learning platform (eg., ASSISTments.org), to explore the effects of different thresholds of consecutive correct responses on learning. Results indicate that despite spending significantly more time practicing there is no significant difference on learning between two, three, four, or five consecutive correct responses. This suggests that systems, and MOOCS, can employ the simple rule of two or three consecutive correct responses when determining the amount of practice provided to users.
智能辅导系统以为成千上万的用户提供定制的学习机会而闻名。许多系统的一个特点是区分用户接受的练习量。为了做到这一点,一些系统依赖于连续正确响应的阈值。例如,可汗学院过去使用连续10个正确,现在使用连续5个正确作为精通阈值。目前的研究采用了一系列随机对照试验,在一个在线学习平台上进行。(ASSISTments.org),探讨连续正确反应的不同阈值对学习的影响。结果表明,尽管花了更多的时间练习,但在学习两个,三个,四个或五个连续正确答案之间没有显着差异。这表明,在确定提供给用户的练习量时,系统和mooc可以采用连续两到三个正确答案的简单规则。
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引用次数: 3
The Role of Social Media in MOOCs: How to Use Social Media to Enhance Student Retention 社交媒体在mooc中的作用:如何利用社交媒体提高学生留存率
Pub Date : 2016-04-25 DOI: 10.1145/2876034.2876047
Saijing Zheng, Kyungsik Han, M. Rosson, John Millar Carroll
The Massive Open Online Courses (MOOC) have experienced rapid development. However, high dropout rate has become a salient issue. Many studies have attempted to understand this phenomenon; other have explored mechanisms for enhancing retention. For instance, social media has been used to improve student engagement and retention. However there is a lack of (1) empirical studies of social media use and engagement compared to embedded MOOC forums; and (2) rationales for social media use from both instructors' and students' perspectives. We addressed these open issues through the collection and analysis of real usage data from three MOOC forums and their associated social media (i.e., Facebook) groups as well as conducting interviews of instructors and students. We found that students show higher engagement and retention in social media than in MOOC forums, and identified both instructors' and students' perspectives that lead to the results. We discuss design implications for future MOOC platforms.
大规模在线开放课程(MOOC)经历了快速发展。然而,高辍学率已经成为一个突出的问题。许多研究试图理解这一现象;其他人则探索了提高留存率的机制。例如,社交媒体被用来提高学生的参与度和保留率。然而,缺乏(1)与嵌入式MOOC论坛相比,社交媒体使用和参与的实证研究;(2)教师和学生使用社交媒体的理由。我们通过收集和分析来自三个MOOC论坛及其相关社交媒体(即Facebook)群组的真实使用数据,以及对教师和学生进行采访,解决了这些开放性问题。我们发现,与MOOC论坛相比,学生在社交媒体上表现出更高的参与度和留存率,并确定了导致结果的教师和学生的观点。我们讨论了未来MOOC平台的设计含义。
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引用次数: 47
Learning Transfer: Does It Take Place in MOOCs? An Investigation into the Uptake of Functional Programming in Practice 学习迁移:mooc会发生吗?函数式程序设计在实践中的应用研究
Pub Date : 2016-04-25 DOI: 10.1145/2876034.2876035
Guanliang Chen, Dan Davis, C. Hauff, G. Houben
The rising number of Massive Open Online Courses (MOOCs) enable people to advance their knowledge and competencies in a wide range of fields. Learning though is only the first step, the transfer of the taught concepts into practice is equally important and often neglected in the investigation of MOOCs. In this paper, we consider the specific case of FP101x (a functional programming MOOC on edX) and the extent to which learners alter their programming behaviour after having taken the course. We are able to link about one third of all FP101x learners to GitHub, the most popular social coding platform to date and contribute a first exploratory analysis of learner behaviour beyond the MOOC platform. A detailed longitudinal analysis of GitHub log traces reveals that (i) more than 8% of engaged learners transfer, and that (ii) most existing transfer learning findings from the classroom setting are indeed applicable in the MOOC setting as well.
大规模在线开放课程(MOOCs)的数量不断增加,使人们能够在广泛的领域提升自己的知识和能力。虽然学习只是第一步,但将教授的概念转化为实践同样重要,但在mooc的研究中往往被忽视。在本文中,我们考虑了FP101x (edX上的函数式编程MOOC)的具体案例,以及学习者在参加课程后改变编程行为的程度。我们能够将大约三分之一的FP101x学习者连接到GitHub,这是迄今为止最受欢迎的社交编码平台,并首次对MOOC平台之外的学习者行为进行探索性分析。对GitHub日志跟踪的详细纵向分析显示:(i)超过8%的投入型学习者迁移,(ii)大多数来自课堂环境的迁移学习发现确实也适用于MOOC环境。
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引用次数: 17
Peer Grading in a Course on Algorithms and Data Structures: Machine Learning Algorithms do not Improve over Simple Baselines 算法和数据结构课程的同侪评分:机器学习算法不会在简单基线上改进
Pub Date : 2015-06-02 DOI: 10.1145/2876034.2876036
Mehdi S. M. Sajjadi, Morteza Alamgir, U. V. Luxburg
Peer grading is the process of students reviewing each others' work, such as homework submissions, and has lately become a popular mechanism used in massive open online courses (MOOCs). Intrigued by this idea, we used it in a course on algorithms and data structures at the University of Hamburg. Throughout the whole semester, students repeatedly handed in submissions to exercises, which were then evaluated both by teaching assistants and by a peer grading mechanism, yielding a large dataset of teacher and peer grades. We applied different statistical and machine learning methods to aggregate the peer grades in order to come up with accurate final grades for the submissions (supervised and unsupervised, methods based on numeric scores and ordinal rankings). Surprisingly, none of them improves over the baseline of using the mean peer grade as the final grade. We discuss a number of possible explanations for these results and present a thorough analysis of the generated dataset.
“同伴评分”是学生们互相评阅作业(如提交的作业)的过程,最近已成为大规模在线开放课程(MOOCs)中使用的一种流行机制。被这个想法所吸引,我们在汉堡大学的一门关于算法和数据结构的课程中使用了它。在整个学期中,学生们反复提交作业,然后由助教和同伴评分机制对作业进行评估,从而产生一个庞大的教师和同伴评分数据集。我们应用了不同的统计和机器学习方法来汇总同龄人的成绩,以便为提交的作品得出准确的最终成绩(有监督和无监督,基于数字分数和顺序排名的方法)。令人惊讶的是,没有一个人的成绩比使用同龄人平均成绩作为最终成绩的基线有所提高。我们讨论了这些结果的一些可能的解释,并对生成的数据集进行了彻底的分析。
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引用次数: 33
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Proceedings of the Third (2016) ACM Conference on Learning @ Scale
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