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1.
Sultana S. Zaman Shirin Z. Munir 《International Journal of Disability, Development & Education》1992,39(1):3-11
SPECIAL EDUCATION in Bangladesh reflects the overall educational problems faced by the nation. While some government programs for children with sensory disabilities are provided, most special education is supported by non‐government organizations. Though planning for improved special education has occurred, implementation has been restricted by economic constraints. 相似文献
2.
Osman Nafiz Kaya 《Research in Science Education》2008,38(1):91-110
Although researchers in higher education propose alternatives to traditional approaches to assessment, traditional methods
are commonly used in college or university science courses. The purpose of this study was to explore the feasibility and validity
of Prospective Science Teachers’ (PSTs) concept maps as authentic assessment tools in a student-centred approach to describe
the changes in the conceptual understanding of the PSTs in general chemistry laboratory investigations. After the PSTs (n = 47) decided on important issues, such as who would assess their concept maps and what scoring strategy and criteria would
be used, they practiced assessing their own and peers’ concept maps during the first five laboratory investigations. They
subsequently constructed and assessed pre- and post-laboratory concept maps in a student-centred approach consisting of self,
peer, and instructor assessments for the five remaining laboratory investigations. The results of the study showed using pre-
and post-laboratory concept maps as authentic assessment tools in a student-centred approach was valid and reliable for describing
the conceptual understanding of the PSTs in a university general chemistry laboratory course. The results of individual interviews
indicated most PSTs had positive views of their assessment practices in the laboratory course. This study also provides pedagogical
implications for the training of science teachers. 相似文献
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4.
Aftab OpelSyeda Sazia Zaman Ferdousi KhanomFrances E. Aboud 《International Journal of Educational Development》2012,32(1):104-110
A randomized evaluation of a 9-month comprehensive math program for preprimary Bangladeshi school children addressed skills such as numbers, measurement, shapes, patterns, and space. Nine schools were randomly selected for the Intervention group and nine for the Control group, with 12 children randomly selected from each to participate in testing. Pre- and posttested scores on each unit's skills and a cumulative test at the end were subjected to analyses of covariance. Intervention children doubled their scores on almost all tests while control children increased only slightly. Reasons for the program's effectiveness were discussed. 相似文献
5.
The purpose of this mixed‐method study was to investigate the changes in high school students' perceptions of fluency with innovative technologies (IT) and the levels of students' scientific inquiry abilities as a result of engaging students in long‐term scientific research projects focusing on community‐based environmental issues. Over a span of 3 years, a total of 125 ninth‐ through twelfth‐grade students participated in this study. A project‐specific Likert‐scale survey consisting of three parts (fluency with All Technologies, GPS/GIS, and CBL2/EasyData) was administered to all students as a pre‐ and post‐test. At the end of the study, 45 students were randomly interviewed and asked to elaborate on the changes in their perceptions of fluency with IT. The results indicated statistically significant increases (p < 0.001) in students' perceptions of their fluency with IT. Qualitative analysis of students' interview results corroborated the statistical findings of students' changes in perceptions of their fluency with IT. Students' research papers based on the environmental studies conducted at the interface of classroom and community were analyzed using the Scientific Inquiry Rubrics, which consist of 11 criteria developed by the researchers. Results indicated the students' abilities to conduct scientific inquiry for 7 out of 11 criteria were at the proficient level. This study clearly points to the correlation between the development of IT fluency and ability levels to engage in scientific inquiry based on respective competencies. Ultimately, this research study recommends that students' IT fluency ought to be developed and assessed concurrently with an emphasis on contemporary higher order scientific inquiry abilities. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 48: 94–116, 2011 相似文献
6.
Ashik Ahmed Md. Mehedi Hassan Galib Shafi Md. Kawsar Zaman Golam Sarowar 《Journal of The Franklin Institute》2018,355(1):197-217
In wind power system, low frequency oscillations are observed due to imbalance between mechanical input and electrical output. Hence, variable susceptance controllers are being adopted to mitigate these oscillations. However, improper modulation of control parameters also leads to system instability. Therefore, we propose an optimization methodology for mitigating low frequency oscillations in wind power generation system. To visualize our methodology, we use a lead-lag type variable susceptance controller for fixed speed induction generator (FSIG) based wind generation system. Then, we optimize gain and time constants of lead-lag controller using three optimization algorithms: particle swarm optimization (PSO), genetic algorithm (GA), and flower pollination algorithm (FPA). Later, we perform non-linear time domain simulation and quantitative analysis to find average fitness, standard deviation, run time, and iteration number for these optimization algorithms. Moreover, non-parametric statistical analysis, such as Kolmogorov–Smirnov and Wilcoxon signed-rank tests are employed for identifying statistically significant differences among these algorithms. 相似文献
7.
Ling L. Liang Sufen Chen Xian Chen Osman Nafiz Kaya April Dean Adams Monica Macklin Jazlin Ebenezer 《International Journal of Science and Mathematics Education》2009,7(5):987-1012
This article presents the findings of an international collaborative investigation into preservice teachers’ views on the
nature of scientific knowledge development with respect to six elements: observations and inferences, tentativeness, scientific
theories and laws, social and cultural embeddedness, creativity and imagination, and scientific methods. A total of 640 preservice
teachers, 209 from the United States, 212 from China, and 219 from Turkey, participated in the study. The survey “Student Understanding of Science and Scientific Inquiry (SUSSI)”, having a blend of Likert-type items and related open-ended questions, was used to gain a fuller understanding of the preservice
teachers’ views of the nature of scientific knowledge development. Across the three countries, the participants demonstrated
better understanding of the tentative NOS aspect but less understanding of the nature of and relationship between scientific
theories and scientific laws. The Chinese sample scored highest on five of the six Likert sub-scales, the USA sample demonstrated
more informed views on observation and inference, and the Turkish preservice teachers possessed relatively more traditional
views in all six NOS aspects. Conclusions and limitations of the present study as well as implications and recommendations
for future studies, are also discussed. 相似文献
8.
Research in Science Education - The original version of this article unfortunately contained a mistake. The name of “Dima Kassab” was incorrectly spelled as “Dimma Kasab”. 相似文献
9.
David Post Lutitia Clipper D. Enkhbaatar Anitra Manning Thomas Riley Husam Zaman 《Higher Education》2004,48(2):213-229
This essay review discusses the report of TheTask Force on Higher Education and Society(TFHES), convened in 1998 by the World Bank butindependently financed and staffed incollaboration with UNESCO and severalfoundations. Peril and Promise marks anhistoric turning point in the framework forpostsecondary educational planning. Rate-of-return analysis has been de-emphasized,while promotion of the public interest hasmoved front and center. The report of theTFHES, published in 2000 by the World Bank, hasreceived deserved attention in some parts ofthe world and has even developed an associatedwebsite (http://www.tfhe.net). As we explainbelow, the framework advocated by the TFHES isalready being used in official policy documentsof the World Bank, whose position will surelymultiply the influence of the Task Forcethrough its effect on other development banksas well as on programs of bilateral nationalassistance. And yet, despite its seminalimportance, the TFHES report has yet to befully appreciated by many researchers of highereducation. With this essay review, we hope tobroaden the discussion of the Task Force, and to offer a preliminary assessment of its impactin the 2002 World Bank policy document, and toconnect its arguments to questions that arecentral in the scholarly literature of ourfield. 相似文献
10.
Nafiz Zaman Shuva 《International Information and Library Review》2012,44(3):132-146
This paper describes the ways used to build digital libraries in Bangladesh as well as the problems that might be encountered during digital library system development. It shows the existing status of digital library development, particularly the status of digitization in Bangladesh as well as government initiatives to build digital library system. Finally, several steps are proposed by the author for one possible approach to build an effective digital library system. 相似文献