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1.
Arzu Saka Lale Cerrah Ali Rıza Akdeniz Alipaşa Ayas 《Journal of Science Education and Technology》2006,15(2):192-202
The study was carried out with 175 Turkish students by using drawings at different ages understanding of gene, DNA and chromosome concepts. Students from 8th, 9th, 11th grades and, science and biology student teachers were simply asked to draw the structure of gene, DNA and chromosome in a cell and also to give explanations about these three concepts. Differences in understanding between the age groups were found to be significant for the concepts of gene and DNA. None of the groups exhibit sound understanding and regardless of the age levels, students in all groups had alternative ideas about the three concepts investigated. 相似文献
2.
Ellen M. Granger Todd H. Bevis Sherry A. Southerland Yavuz Saka Fengfeng Ke 《科学教学研究杂志》2019,56(3):348-370
This research examines factors influencing elementary science teacher learning as they participate in professional development with and enactment of educative curricula in comparison with learning following limited professional development and enactment of traditional curricula. Using a randomized cluster design (125 teachers and 2,694 students in 4th—5th grades) that met the What Works Clearinghouse standards without reservations, teacher learning was conceptualized using four outcomes. Data were analyzed using standard single-level multiple regression models and possible mediation models for the teacher outcomes were considered using piecewise multiple regression and path analytic approaches. Treatment group teachers experienced greater increases in content knowledge, views of science inquiry, beliefs about reform-based teaching, and teaching self-efficacy than comparison group teachers. The findings indicate that what teachers learn from the combination of professional development and teaching with educative curriculum varies according to what their knowledge and beliefs are on entering the experience. Surprisingly, high entry-level self-efficacy was associated not only with lower learning gains for the teachers, but also for their students. Finally, teachers' space science learning and that of their students are implicated as mediators of the positive effect of the professional development and educative curriculum enactment on teacher beliefs about reform science teaching. This work refines and extends a theoretical framework of teachers' participatory relationship with curricula. 相似文献
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Yavuz Saka 《Journal of Science Education and Technology》2013,22(6):934-951
To address the need to better prepare teachers to enact science education reforms, the National Science Foundation has supported a Research Experience for Teachers (RET’s) format for teacher professional development. In these experiences, teachers work closely with practicing scientists to engage in authentic scientific inquiry. Although there are many RET programs currently serving teachers, there is only a small body of research describing these programs and their outcomes. Just as science learning depends on both cognitive and affective factors of learners, the success of teacher professional development also depends on the cognitive and affective factors of the participants. Thus, the intent of this mixed method research is to better understand how the nature of professional development experiences shape the kinds of teachers that apply, and what this means for the design of such experiences. This study focused on describing the cognitive and affective characteristics of applicants for two different RET programs offered at the same institution. Findings suggest that the profiles of teachers who seek out these professional development programs vary based on the programs’ objectives. The findings also suggest that recognition of who is being served in professional development must be considered in the construction of those professional development experiences. 相似文献
4.
Turkey’s Anadolu University is one of the world’s largest mega‐universities. It is engaged in strategic planning in response to changes in the expectations of the Turkish Higher Education Council and the community at large. In re‐examining its vision and strategic directions, Anadolu University needs to be informed on the knowledge, skills, and attitudes of its teaching staff, and the systems and support needed to assure their change readiness. This article examines the literature of organizational and educational change and its implications for the university. It reports on a study based on the relevant constructs from the literature and is designed to gauge the extent and nature of teaching staff knowledge, skills, practice, and research in educational and technological change, motivating and de‐motivating factors, change adopter types, and perceptions of the organizational climate for change. It considers the implications of these findings and draws conclusions about what would be needed to improve staff readiness for change. 相似文献
5.
Knowledge process capabilities are highly associated with innovation performance. Namely, firms which develop better capabilities in processing knowledge can innovate better. The Dynamic Capabilities view states that the effects of contextual variables on capability development cannot be ignored. This study seeks to examine the roles of two contextual variables; environmental dynamism and strategic flexibility on developing knowledge process capabilities and innovation performance. In parallel with this aim, a survey was conducted on a sample of 236 firms from different industries in Turkey and a number of hypotheses including the interaction effects of environmental dynamism and strategic flexibility were tested through moderated multiple regression methods. The three-way interaction of knowledge process capabilities, environmental dynamism and strategic flexibility was associated more strongly with innovation performance than the two-way interactions of knowledge process capabilities and environmental dynamism, and knowledge process capabilities and strategic flexibility. Hence, the findings revealed that the effectiveness of knowledge process capabilities on the way of enhancing innovation performance in highly dynamic markets were contingent upon strategic flexibility.
相似文献6.
Güler Yavuz Temel 《Journal of Educational Measurement》2024,61(1):69-98
The purpose of this study was to investigate multidimensional DIF with a simple and nonsimple structure in the context of multidimensional Graded Response Model (MGRM). This study examined and compared the performance of the IRT-LR and Wald test using MML-EM and MHRM estimation approaches with different test factors and test structures in simulation studies and applying real data sets. When the test structure included two dimensions, the IRT-LR (MML-EM) generally performed better than the Wald test and provided higher power rates. If the test included three dimensions, the methods provided similar performance in DIF detection. In contrast to these results, when the number of dimensions in the test was four, MML-EM estimation completely lost precision in estimating the nonuniform DIF, even with large sample sizes. The Wald with MHRM estimation approaches outperformed the Wald test (MML-EM) and IRT-LR (MML-EM). The Wald test had higher power rate and acceptable type I error rates for nonuniform DIF with the MHRM estimation approach.The small and/or unbalanced sample sizes, small DIF magnitudes, unequal ability distributions between groups, number of dimensions, estimation methods and test structure were evaluated as important test factors for detecting multidimensional DIF. 相似文献
7.
Yavuz Akbulut 《Instructional Science》2007,35(6):499-517
The study investigates immediate and delayed effects of different hypermedia glosses on incidental vocabulary learning and
reading comprehension of advanced foreign language learners. Sixty-nine freshman TEFL students studying at a Turkish university
were randomly assigned to three types of annotations: (a) definitions of words, (b) definitions coupled with associated pictures,
and (c) definitions coupled with associated short videos. Subjects were asked to read an annotated text with the intention
of comprehension. The data were collected through a vocabulary pre-test, a vocabulary post-test, a delayed vocabulary test
as well as a reading comprehension test. In order to measure incidental vocabulary learning, subjects were not told that they
were going to be given vocabulary tests. Results showed that the groups that had access to definitions along with both types
of visuals had significantly higher vocabulary scores on both immediate and delayed post-tests than the definition only group.
However, no differences were observed on the reading comprehension test. Finally, the qualitative data revealed that hypermedia
reading had positive impact on participants’ attitudes towards foreign language reading and vocabulary learning.
相似文献
| Yavuz AkbulutEmail: |
8.
Mido Chang Michael A. Evans Sunha Kim Anderson Norton Kirby Deater-Deckard Yavuz Samur 《Education and Information Technologies》2016,21(5):1283-1297
In an effort to maximizing success in mathematics, our research team implemented an educational video game in fifth grade mathematics classrooms in five schools in the Eastern US. The educational game was developed by our multi-disciplinary research team to achieve a hypothetical learning trajectory of mathematical thinking of 5th grade students. In this study, we examined overall engagement and three sub-domains of engagement as outcome variables after ten sessions of treatment with fifth grade students. The results showed that both male and female the video game group had slight increases in all engagement levels while students, particularly male, in the paper-and-pencil drill group displayed large decreases in all engagement levels. Implications of the study are 1) more fine-grained evidence of engagement in three sub-domains after implementing an educational video game, and 2) a consideration of gender differences in engagement levels in mathematics in the adoption of a video games. 相似文献
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