项目教学法在理财规划与实务教学中的应用

以典型工作任务为引领,采用项目教学法,探索理财规划与实务课程的教学设计,实现教学与岗位需求的零距离接轨。     

用实数完备性证明闭区间上连续函数的有界性

用实数完备性定理（区间套定理、确界原理、单调有界定理、柯西收敛准则）,直接证明了闭区间上连续函数的有界性,从一侧面反映了实数完备性的6个基本定理是互相等价的。     

情境教学法在高职英语课堂中的一例

课堂教学是学校教育中最重要和最基本的活动形式,形式多样的有效教学设计在英语教学中也扮演着越来越重要的角色.为进一步激发学生兴趣,提升其运用语言能力,本文尝试将“时光旅行”情境教学法运用到具体的课堂一例,分析情境教学在高职英语教学中的可行性.     

Affordances of using Multiple Videoed Events to construct a rich understanding of adult–child book readings

This paper explores the affordances of using video-based research to capture a multiplicity of events, along with multimodal representations when producing data related to adult–child book readings. In doing this we answer two questions: (1) why more than one event is needed when seeking a comprehensive collection of information for the purpose of analysis; and (2) why one mode of data production alone (e.g. audio recordings or note taking) is insufficient to record practice or interviews when richness is of priority. This research used three videoed events to produce data. These included videoing: (1) caregiver–child interactions during four shared book reading sessions, (2) interviews with caregivers immediately following each of the reading sessions and (3) video-stimulated discussions with caregivers within two months of the final shared book reading. In this paper, I contribute to discussions that highlight the affordances of using video-based research as a means of capturing the multimodal elements of an experience, which can contribute to the analysis and interpretation of data. I expand on this, however, to suggest that when coupled with a multiplicity of events, video-based research can be a means of pursuing richness via a method that has been criticized for its narrow subjectivity.     

使用NWA对组合web服务进行可达性分析

为了提高组合web服务的设计和实现质量,使用形式化方法对其进行建模并对其关键性质进行验证.使用web服务接口控制流自动机（WCFA）对web服务进行建模,主要描述其控制流及与其他web服务的交互关系.组合web服务由一组交互的WCFA组成.使用嵌套字自动机（NWA）对组合web服务的整体行为进行建模.将一组WCFA转换为嵌套字自动机（NWA）的算法是深度优先搜索算法的变种,算法中使用路径相关的可达性分析计算NWA的每个节点的状态公式和调用栈.安全性相关性质、调用栈相关性质及服务调用的前置和后置条件都可以用断言来描述,然后使用一个自动的可满足性（SAT）求解工具对这些断言进行验证.     

Conditions that enable effective feedback

ABSTRACT

Despite an increasing focus on assessment feedback, educators continue to find that simply replicating an effective feedback practice from one context does not guarantee success in the next. There is a growing recognition that the contextual factors surrounding successful practices need to be considered. This article reports on a large-scale mixed methods project and proposes 12 conditions that enable successful feedback in higher education. The conditions were distilled from seven rich case studies through multiple stages of thematic analysis, case comparison and reliability checking. The conditions were also evaluated by surveying senior leaders of Australian universities. These conditions highlight the importance of carefully designing feedback processes, along with the need for addressing capacity and culture for feedback. This helps to explain why there are such variances in effective feedback across contexts, and offers insight into how it may be achieved.     

Nonlongitudinal Estimation of Growth Curve Parameters: The Cohort Growth Model

The cohort growth model (CGM) is a method for estimating the parameters of a latent growth model (LGM) based on cross-sectional data. The CGM models the interindividual differences in the growth rate, and it models how subjects’ growth rate is related to their initial status. We derive model identification for the CGM and illustrate, in a simulation study, that the CGM provides unbiased parameter estimates in most simulation conditions. Based on empirical data we compare the estimates of the CGM with the estimates of the LGM. The results were comparable for both models. Although the estimates of the (co)-variances were different, the estimates of both models led to similar conclusions on the developmental change. Finally, we discuss the advantages and limitations of the CGM, and we provide recommendations for its use in empirical research.     

Empirical Performance of Covariates in Education Observational Studies

This article summarizes results from 12 empirical evaluations of observational methods in education contexts. We look at the performance of three common covariate-types in observational studies where the outcome is a standardized reading or math test. They are: pretest measures, local geographic matching, and rich covariate sets with a strong theory of treatment selection. Overall, the review demonstrates that although the pretest often reduces bias in observational studies, it does not always eliminate it. Its performance depends on the pretest's correlation with treatment selection and the outcome, and whether preintervention trends are present. We also find that although local comparisons are prioritized for matching, its performance depends on whether comparable no-treatment cases are available. Otherwise, local comparisons may produce badly biased results. In cases where researchers have a strong theory of selection and rich covariate sets, observational methods perform well, but additional replication studies are needed. Finally, observational methods that rely on demographic covariates without a theory of selection rarely produce unbiased treatment effects. The article concludes by offering education researchers empirically based guidance on covariate selection in observational studies.     

多媒体教学手段在外语教学中的体现

随着创新教育改革的发展,研究型学习的兴起,多媒体、因特网学习资源的迅速膨胀,以学为中心的教学模式被广泛认同,教师培训从课件的制作和应用为中心转向信息化教学设计为中心,教师在教学中注意充分利用网络资源和各类信息资源来辅助学生的自主学习,现代教育技术在学校的应用逐步成为教学活动的基础。     

多媒体教学手段在外语教学中的体现

随着创新教育改革的发展，研究型学习的兴起，多媒体、因特网学习资源的迅速膨胀，以学为中心的教学模式被广泛认同，教师培训从课件的制作和应用为中心转向信息化教学设计为中心，教师在教学中注意充分利用网络资源和各类信息资源来辅助学生的自主学习，现代教育技术在学校的应用逐步成为教学活动的基础。