The programmers’ collective: fostering participatory culture by making music videos in a high school Scratch coding workshop

We highlight ways to support interest-driven creation of digital media in Scratch, a visual-based programming language and community, within a high school programming workshop. We describe a collaborative approach, the programmers’ collective, that builds on social models found in do-it-yourself and open source communities, but with scaffolding structures that support students’ learning. We analyze the work of a class of high school student collectives engaged in programming music videos as part of a collaborative challenge in the online Scratch community. Our multi-level analysis focused on students’ learning specific programming concepts, effects of collaborative and task design on learning, and their personal reflections on collaboration and media creation. We address how these overlapping collaborative experiences point to the value of “nested collectives,” or multiple levels of designed-for collaboration. We also highlight a needed shift from a focus on computation to computational participation, highlighting the innately social aspects of media creation.     

Impact evaluation of quality assurance in higher education: methodology and causal designs

In this paper, the theoretical perspectives and general methodological elements of impact evaluation of quality assurance in higher education institutions are discussed, which should be a cornerstone of quality development in higher education and contribute to improving the knowledge about the effectiveness (or ineffectiveness) of quality assurance. The suggested core methodology consists in comparative and longitudinal studies carried out simultaneously to the quality assurance interventions and relying on surveys and mixed methods. The methodology is applicable to any particular quality assurance procedure and any achievement area of higher education institutions. To round off the methodology presentation, an overview of causal designs, in particular causal social mechanisms, for impact analyses of quality assurance in higher education institutions and its challenges and limits is outlined and some characteristics of survey questionnaire construction are given.     

体育教案教学中开展研究性学习法的尝试

研究性学习是在实施素质教育过程中，经过多年教育教学实践探索出来的一种新的学习方式；师范院校的教师根据体育专业班的学生已有的化知识、辩证思考的方法和社会实践知识来开展“研究性学习法”的尝试，将有利于把学生培养成科学型、学型的未来教师，有利于教学质量的全面提高。     

工程力学教学中的几点设计

专业基础课与学生的学习兴趣和能力之间有一定的距离,如何能够唤起并始终保持学生适度的学习兴趣,需要教师对教学的方方面面进行精心设计.     

A Comparison of Propensity Score Weighting Methods for Evaluating the Effects of Programs With Multiple Versions

This Monte Carlo simulation study compares methods to estimate the effects of programs with multiple versions when assignment of individuals to program version is not random. These methods use generalized propensity scores, which are predicted probabilities of receiving a particular level of the treatment conditional on covariates, to remove selection bias. The results indicate that inverse probability of treatment weighting (IPTW) removes the most bias, followed by optimal full matching (OFM), and marginal mean weighting through stratification (MMWTS). The study also compared standard error estimation with Taylor series linearization, bootstrapping and the jackknife across propensity score methods. With IPTW, these standard error estimation methods performed adequately, but standard errors estimates were biased in most conditions with OFM and MMWTS.     

The Impact of Over-Simplifying the Between-Subject Covariance Structure on Inferences of Fixed Effects in Modeling Nested Data

This study discusses the effects of oversimplifying the between-subject covariance structure on inferences for fixed effects in modeling nested data. Linear and quadratic growth curve models (GCMs) with both full and simplified between-subject covariance structures were fit to real longitudinal data. The results were contradictory to the statement that using oversimplified between-subject covariance structures (e.g., uni-level analysis) leads to underestimated standard errors of fixed effect estimates and thus inflated Type I error rates. We analytically derived simple mathematical forms to systematically examine the oversimplification effects for the linear GCMs. The derivation results were aligned with the real data analysis results and further revealed the conditions under which the standard errors of the fixed-effect intercept and slope estimates could be underestimated or overestimated for over-simplified linear GCMs. Therefore, our results showed that the underestimation statement is a myth and can be misleading. Implications are discussed and recommendations are provided.     

论体验经济时代旅行社产品的设计与创新

文章基于体验经济时代，人们的旅游需求发生了重大变化。旅行社产品必须创新，旅行社在产品设计环节引入体验设计，使提供的产品更能适应旅游市场的需求，从而获得稳定的经济利益以及竞争优势。     

高职“英汉翻译”课程设置与教学改革的探索与实践

翻译是一门实践性和综合性很强的课程，课堂讲授内容除了翻译的基本理论和技巧外，实践练习是课程的重要组成部分。合理的课程设置及教学方法的可行性使课堂教学更加有效，学生对翻译课程的积极参与和学习，以及相应的翻译活动实践，有助于提高其综合运用语言技能的能力，并从高职院校的角度出发，对英汉翻译的课程设置以及教学方法进行了探讨。     

现代职教观指导下的教学设计之我见

提高教学质量是教育的重要目标,以现代职教观为指导,精心进行课程教学设计,是提高高职院校教学质量的一个好途径,现代职教观的核心是由“知识本位”向“能力本位”的转变,在现代职教观指导下的教学目标设计、教学过程设计、教学方法设计、教学评估设计等,对教师提出了全新的要求。     

陈天尺剧作舞台设计探析

陈天尺是晚清民国时期著名的剧作家,他的剧作有着很强的舞台性。从他的剧作中,可知作者非常注意人物活动空间的安排,场景设计严谨,通过"幕"、"舞台旋转"等形式来灵活处理。陈天尺剧作中精致的舞台设计提示为实际舞台演出的二度创作提供了极大的便利,同时也使得其戏剧思想得到很好的体现。