Developing preservice teachers’ sensitivity and confidence: a service-learning experience at a homeless shelter     

Sungok Reina Park  Guang-Lea Lee  James L. Hoot 《Journal of Early Childhood Teacher Education》2019,40(1):31-43

ABSTRACT

This article describes how early childhood preservice teachers can develop sensitivity toward and confidence in working with children who are homeless through a service learning project. The 14 weeks intervention provided an opportunity for undergraduate early childhood teacher candidates to gain real-life experience working with among the most vulnerable of all children—those who are homeless. Results of this project suggest that through implementing art integrated literacy activities with children in a homeless shelter, teacher candidates alter their deficit views of homelessness and at the same time develop confidence in their ability to work with homeless children and their families.  相似文献   

Opening or closing doors for students? Equity and data use in schools     

Amanda Datnow  Vicki Park 《Journal of Educational Change》2018,19(2):131-152

Ensuring equitable opportunities and outcomes for all students is a top priority of many educators and policymakers across the globe. Data use can be an important lever for achieving equity, but how this can occur is not well understood. In this article, we draw upon knowledge gained in a decade of in-depth qualitative research to examine the ways in which data use helps to open or close doors for students. We discuss data use practices that influence equity goals: (1) accountability-driven data use and data use for continuous improvement; (2) using data to confirm assumptions and using data to challenge beliefs, and (3) tracking and flexible grouping to promote student growth. Along each of these dimensions, there are active decision makers, complex processes of data use at play, and a great deal of variation both within and across contexts. Ultimately, educators and policymakers are faced with critical choices regarding data use that can profoundly affect students’ daily educational experiences and trajectories.  相似文献   

A Case Study of Russification in Two Translations of <Emphasis Type="Italic">Alice’s Adventures in Wonderland</Emphasis> by Vladimir Nabokov and Boris Zakhoder     

Mee Ryoung Park 《Children‘s Literature in Education》2018,49(2):140-160

This paper examines the domestication of children literature through the comparative study of two translations of Alice’s Adventures in Wonderland by Vladimir Nabokov and Boris Zakhoder. Alice’s Adventures in Wonderland has a reputation for being difficult to translate into foreign languages due to its strong linguistic features of world play and parody embedded in British culture. Nabokov and Zakhoder demonstrate different approaches in translating the book and providing opportunities for Russian children to feel the same emotion and imagination that English children would feel when reading Carroll’s book. While Nabokov attempts to fully translate the meanings of Carroll’s wordplay, the rhyme of poetry and humor, Zakhoder focuses more on direct translation of original text or adding new contents to facilitate better understandings for Russian children. Nabokov exhibits more ideal translation approach of Carroll’s work and Zakhoder represents typical translation approach of Soviet era.  相似文献   

Maternal responsiveness and child compliance: the role of mood as a mediator   总被引：2，自引：0，他引：2  

K L Lay  E Waters  K A Park 《Child development》1989,60(6):1405-1411

Parpal and Maccoby demonstrated that responsive maternal play increases children's compliance. They suggested that positive mood induction might be one mechanism mediating this effect. Study 1 tested the hypothesis that a responsive maternal play procedure would indeed induce a positive mood. 32 4-year-olds and their mothers participated. Half of the mothers were trained in a responsive play technique prior to a laboratory play session; half of them were not trained. Postplay self-reports of mood indicated that responsive play increased positive mood but did not affect arousal levels. Study 2 tested the hypothesis that experimentally induced positive mood increases compliance in the types of tasks reported in the Parpal and Maccoby's research. 24 4-year-olds were randomly assigned to either a positive or negative mood induction and then tested for response to maternal compliance demands. Children induced into positive moods complied more and complied with shorter latencies than children induced into negative moods. The fact that maternal responsiveness induces a positive mood points to a mechanism that may be significant in both attachment and socialization beyond infancy.  相似文献   

Unintended knowledge learnt in primary science practical lessons     

Jisun Park  Ian Abrahams 《International Journal of Science Education》2016,38(16):2528-2549

This study explored the different kinds of unintended learning in primary school practical science lessons. In this study, unintended learning has been defined as student learning that was found to occur that was not included in the teachers learning objectives for that specific lesson. A total of 22 lessons, taught by five teachers in Korean primary schools with 10- to 12-year-old students, were audio-and video recorded. Pre-lesson interviews with the teachers were conducted to ascertain their intended learning objectives. Students were asked to write short memos after the lesson about what they learnt. Post-lesson interviews with students and teachers were undertaken. What emerged was that there were three types of knowledge that students learnt unintentionally: factual knowledge gained by phenomenon-based reasoning, conceptual knowledge gained by relation- or model-based reasoning, and procedural knowledge acquired by practice. Most unintended learning found in this study fell into the factual knowledge and only a few cases of conceptual knowledge were found. Cases of both explicit procedural knowledge and implicit procedural knowledge were found. This study is significant in that it suggests how unintended learning in practical work can be facilitated as an educative opportunity for meaningful learning by exploring what and how students learnt.  相似文献   

Analysis of student’s responses to contradictory results obtained by simple observation or controlling variables     

Jongwon Park  Ikgyun Kim 《Research in Science Education》1998,28(3):365-376

This study investigated students’ responses to presentations of experimental results that conflicted with their preconceptions regarding electric circuits, and how those responses varied according to the type of inquiry skills required to obtain the results. One hundred and twenty students of both sexes were randomly selected from a science high school in Korea. They were questioned about their preconceptions regarding an electric circuit and forty-two students with relevant misconceptions were selected. The students were randomly assigned to two groups, and presented with one of two sheets of paper presenting results obtained by a fictional investigator. The first group was presented with results that were obtained by simple observation and asked for their evaluation of them. The second group was presented with a set of results that were obtained by controlling variables, and asked to draw a conclusion and to evaluate it. Students’ responses were classified into two categories. Some students rejected their own preconceptions and introduced a new explanatory model when contradictory results were presented, and others denied the results for the simple reason that they conflicted with their preconceptions, or only modified a protective belt without changing their core of preconceptions. We found that this distribution of responses varied considerably by inquiry skill type. For the results obtained by controlling variables, almost all students accepted them and changed their preconceptions, but for the results obtained by simple observation, fifty-five percent of students preserved their own preconceptions by denying the contradictory results or modifying the protective belt.  相似文献   

Optoelectrofluidic field separation based on light-intensity gradients     

Sanghyun Lee  Hyun Jin Park  Jin Sung Yoon    Kwan Hyoung Kang 《Biomicrofluidics》2010,4(3)

Optoelectrofluidic field separation (OEFS) of particles under light -intensity gradient (LIG) is reported, where the LIG illumination on the photoconductive layer converts the short-ranged dielectrophoresis (DEP) force to the long-ranged one. The long-ranged DEP force can compete with the hydrodynamic force by alternating current electro-osmosis (ACEO) over the entire illumination area for realizing effective field separation of particles. In the OEFS system, the codirectional illumination and observation induce the levitation effect, compensating the attenuation of the DEP force under LIG illumination by slightly floating particles from the surface. Results of the field separation and concentration of diverse particle pairs (0.82–16 μm) are well demonstrated, and conditions determining the critical radius and effective particle manipulation are discussed. The OEFS with codirectional LIG strategy could be a promising particle manipulation method in many applications where a rapid manipulation of biological cells and particles over the entire working area are of interest.  相似文献   

Longitudinal trends in networks of university-industry-government relations in South Korea: The role of programmatic incentives   总被引：1，自引：0，他引：1  

Han Woo Park  Loet Leydesdorff 《Research Policy》2010,39(5):640-649

This study examines the longitudinal trend of systemness in networked research relations in South Korea using a triple helix (TH) indicator of university-industry-government (UIG) relations. The data were harvested from the Science Citation Index (SCI) and its counterparts in the social sciences (SSCI) and the arts and humanities (A&HCI). The total number of Korean SCI publications has grown rapidly since 1965. However, the TH indicator shows that the network dynamics have varied considerably according to the research policies of the national government. The collaboration patterns, as measured by co-authorship relations in the SCI noticeably increased, with some variation, from the mid-1970s to the mid-1990s. However, inter-institutional collaboration in the first decade of the 21st century was negatively influenced by the new national science and technology (S&T) research policies that evaluated domestic scientists and research groups based on their international publication numbers rather than on the level of cooperation among academic, private, and public domains. The results reveal that Korea has failed to boost its national research capacity by neglecting the network effects in science, technology, and industry.  相似文献   

Improved stabilization criteria for fuzzy systems under variable sampling     

Chao Ge  Hong Wang  Yajuan Liu  Ju H. Park 《Journal of The Franklin Institute》2017,354(14):5839-5853

This paper investigates the problem of stabilization for fuzzy sampled-data systems with variable sampling. A novel Lyapunov–Krasovskii functional (LKF) is introduced to the fuzzy systems. The benefit of the new approach is that the LKF develops more information about actual sampling pattern of the fuzzy sampled-data systems. In addition, some symmetric matrices involved in the LKF are not required to be positive definite. Based on a recently introduced Wirtinger-based integral inequality that has been shown to be less conservative than Jensen’s inequality, much less conservative stabilization conditions are obtained. Then, the corresponding sampled-data controller can be synthesized by solving a set of linear matrix inequalities (LMIs). Finally, an illustrative example is given to show the feasibility and effectiveness of the proposed method.  相似文献   

Advanced stability criteria for linear systems with time-varying delays     

M.J. Park  O.M. Kwon  J.H. Ryu 《Journal of The Franklin Institute》2018,355(1):520-543

This paper investigates a stability problem for linear systems with time-varying delays. By constructing suitable augmented Lyapunov–Krasovskii functionals, improved stability criteria under various conditions of time-varying delays are derived within the framework of linear matrix inequalities (LMIs). Moreover, to reduce the computational burden caused by the non-convex term including h²(t), how to deal with it is applied by estimating it to the convex term including h(t). Finally, three illustrative examples are given to show the effectiveness of the proposed criteria.  相似文献