Situating Computer Simulation Professional Development: Does It Promote Inquiry-Based Simulation Use?

ABSTRACT

This mixed-methods study sought to identify professional development implementation variables that may influence participant (a) adoption of simulations, and (b) use for inquiry-based science instruction. Two groups (Cohort 1, N = 52; Cohort 2, N = 104) received different professional development. Cohort 1 was focused on Web site use mechanics. Cohort 2 was situated in nature and provided three additional elements: (a) modeling simulation use within inquiry-based instruction; (b) collaboration; and (c) provision of content-relevant lesson planning time. There was no difference in the extent of simulation use between cohorts, χ²(1) = 0.878, p = .349, φ = ?0.075. Results were inconclusive for a difference in observed inquiry instruction as Fisher's Exact Test was insignificant but had a medium effect size, p = .228, φ = 0.283. Computer-based standardized tests emerged as a novel technology integration barrier. These findings have implications for school policy, professional development, and future research.     

Web search engine multimedia functionality

Web search engines are beginning to offer access to multimedia searching, including audio, video and image searching. In this paper we report findings from a study examining the state of multimedia search functionality on major general and specialized Web search engines. We investigated 102 Web search engines to examine: (1) how many Web search engines offer multimedia searching, (2) the type of multimedia search functionality and methods offered, such as “query by example”, and (3) the supports for personalization or customization which are accessible as advanced search. Findings include: (1) few major Web search engines offer multimedia searching and (2) multimedia Web search functionality is generally limited. Our findings show that despite the increasing level of interest in multimedia Web search, those few Web search engines offering multimedia Web search, provide limited multimedia search functionality. Keywords are still the only means of multimedia retrieval, while other methods such as “query by example” are offered by less than 1% of Web search engines examined.     

提高西藏黄奶牛生产性能研究

该项目是中澳国际联合的其中一个,根据发展奶业,促进农区畜牧业发展,提高农村生活水平的需要在西藏河谷流域农牧交错带开展调研.三年来在四个不同的区域进行随机抽样设点,了解项目区奶牛发展现状,系统收集分析当前农户饲养奶牛的饲料结构,营养水平、繁殖成活能力以及管理模式.同时引进澳方饲养奶牛的先进技术、管理措施和发展理念,有效利用西藏现有的作物秸秆,研发优良饲草、饲喂技术,进一步研究牛在一个生长周期中的饲料平衡、生长模式及量化营养等生产性能的对应关系,加大引创结合、重点突破,提高项目区奶牛生产性能,增加农户现金收入.     

Community College Student Success Programs: A Synthesis,Critique, and Research Agenda

A narrative review was developed to add to the discussion and dissemination of research on community colleges. The review adds to existing work by synthesizing and critiquing the empirical research to date specific to three of the most prevalent programmatic efforts presently seen on community college campuses: (a) learning communities, (b) student success courses, and (c) supplemental instruction. Empirical investigations or evaluations of student success programs from academic journals, conference presentations, dissertations, unpublished policy reports, and book chapters were identified, summarized, and critiqued. The review concludes with a proposed research agenda to advance research on program effectiveness at community colleges and implications for practice.     

Roles,practices and contexts for acting as agents of social justice – student teachers’ perspectives

ABSTRACT

Student teachers are oftentimes encouraged to apply theoretical principles of social justice to their professional practice. However, this can be problematic when theoretical knowledge is contested or if it is inconsistent with the practices in their future workplaces. Studies in this area often examine student teachers’ beliefs and understanding of their roles without taking account of how concrete working contexts shape what they see as possible in their practice. This study explored how students in two teacher education programmes based at the University of Edinburgh perceived their roles, practices and contexts for acting as agents of social justice. Mixed methods were used for data generation and triangulation including a questionnaire survey (n = 299) and scenario-based interviews (n = 9) to explore how students think about social justice issues in context. Student teachers generally saw agency for social justice as part of their role. Their understanding of the ways of addressing context-embedded issues of social justice focused on classroom practices while they raised concerns about how their practice depends on others in the system. We discuss the implications of these findings for teacher education.     

A One-year Case Study: Understanding the Rich Potential of Project-based Learning in a Virtual Reality Class for High School Students

This paper presents a qualitative case analysis of a new and unique, high school, student-directed, project-based learning (PBL), virtual reality (VR) class. In order to create projects, students learned, on an independent basis, how to program an industrial-level VR machine. A constraint was that students were required to produce at least one educational application of VR. This study incorporated in-depth classroom observations, interviews with students, analyses of student projects, and surveys of parents and teachers to examine the social and learning processes in the class, and the nature of content learning represented in student projects. The results demonstrated that PBL can be effective even with minimal teacher guidance. The findings substantiate an educational approach rich with promise, for at least some students, that deserves considerable additional study to maximize its powerful potentials for independent and peer-mentored learning.     

The Efficacy of Inquiry-Based Instruction in Science: a Comparative Analysis of Six Countries Using PISA 2015

This study is a comparative analysis of 15-year-old students’ scientific literacy, and its association with the instructional strategies that students experience, across six OECD countries that participated in PISA 2015. Across the six countries, the study investigates the efficacy of inquiry-based instruction in science in contrast with two other instructional approaches to teaching secondary science: adaptive and teacher-directed teaching. The analysis shows that students who reported experiencing high frequencies of inquiry strategies in their classrooms consistently evidenced lower levels of scientific literacy across the six countries. Benchmark analysis also showed, common to all six countries, a strongly positive association between the frequency of teacher-directed and adaptive teaching strategies and students’ scientific literacy. Additionally, the study disaggregates PISA’s composite variable representing inquiry-based instruction and shows that different components of inquiry are differentially associated with students’ scientific literacy. We discuss the implications of these analyses for science teacher educators, science teachers, and educational policy makers. In doing so, we add nuance to our understanding of the efficacy of inquiry-based instruction in science, suggesting that some components, as conceptualised and assessed in PISA, seem to suggest greater attention and use, and others more moderated use.