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1.
Our study investigates perspectives of mathematics teacher educators related to the usage of their mathematical knowledge
in teaching “Methods of Teaching Elementary Mathematics” courses. Five mathematics teacher educators, all with experience
in teaching methods courses for prospective elementary school teachers, participated in this study. In a clinical interview
setting, the participants described where and how, in their teaching of elementary methods courses, they had an opportunity
to use their advanced mathematical knowledge and provided examples of such opportunities or situations. We outline five apparently
different viewpoints and then turn to the similar concerns that were expressed by the participants. In conclusion, we connect
the individual perspectives by situating them in the context of unifying themes, both theoretical and practical. 相似文献
2.
Reusable and Sustainable Science and Engineering Education 总被引：1，自引：0，他引：1
Yehudit Judy Dori 《Journal of Science Education and Technology》2008,17(2):121-123
3.
There is a consensus regarding the fact that students encounter difficulties in understanding scientific concepts, such as the particulate nature of matter, the mole, and the interpretation of chemical symbols. Researchers and practitioners have been looking for teaching methods to improve students' understanding of quantitative chemistry and their ability to solve related problems. This study describes the Multidimensional Analysis System (MAS), an approach to constructing, classifying, and analyzing quantitative chemistry problems. MAS enables classification based on complexity and transformation levels of a quantitative problem. We define three transformation levels: symbol ? macro, symbol ? micro, and symbol ? process. Applying this framework to teaching and research, we investigated the relationships between MAS‐classified chemistry problems and student achievement in solving these problems. The research population, 241 high school chemistry students, studied problem solving according to MAS for 9 weeks; the control group studied the same topic for the same duration in the traditional way. Student achievement was sorted by mathematics level and gender. We found that the success rate of the entire student population in solving these problems decreased as the problem difficulty increased. Experimental group students scored significantly higher than their control group peers. The improvement in student achievement was significantly dependent on the pretest score and the mathematics level, and independent of gender. Students who studied mathematics in the basic level benefited significantly more from MAS‐based teaching than their peers, whose mathematics level was advanced. Based on the research findings, we recommend applying the multidimensional analysis approach while teaching quantitative problems in chemistry. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 278–302, 2003 相似文献
4.
An effective strategy for improving problem‐solving ability is fostering students' question‐posing capabilities through the use of real‐world problems. This article describes research on scientific question‐posing capabilities among 10th‐grade students who were studying air quality in a cooperative way, using the jigsaw method. Case studies and analyses of daily problems and dilemmas were integrated within the module the Quality of Air around Us, which was designed and developed specially for this research. The students were required to pose questions and cope with real‐life problems while practicing a variety of learning activities, such as reading press or scientific articles, analyzing tables and graphs, and creating posters and advertisements that related to the problem. The students' question‐posing skills were evaluated by using pre‐ and postcase study questionnaires. We found the number, orientation, and complexity of questions students posed to be three indices of question‐posing capability. Following study of the Quality of Air around Us module, a significant increase was observed in the factors of number and complexity of questions students posed. The difference between students at high and low academic levels in the extent of increase in both number and complexity of posed questions was significant. As for orientation, the percentage of solution‐ and opinion‐oriented questions increased in the posttest, and fewer questions dealt with the problem and related hazards. This indicates an increase in students' awareness of the need for and feasibility of seeking practical solutions to a given problem, as well as considerable improvement of their ability to analyze a related case study. On the basis of these findings, we recommend incorporating analysis of question‐posing capability as an alternative evaluation method. To this end, fostering of question posing into the case study–based teaching/learning approach is the preferred strategy, in particular when environmental aspects are involved. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 411–430, 1999 相似文献
5.
Zvia Kaberman Yehudit Judy Dori 《International Journal of Science and Mathematics Education》2009,7(3):597-625
A new learning unit in chemistry, Case-based Computerized Laboratories (CCL) and Computerized Molecular Modeling (CMM) was developed at the Technion. The CCL and CMM curriculum integrates computerized desktop experiments and molecular
modeling with an emphasis on scientific inquiry and case studies. Our research aimed at investigating the effect of the CCL
and CMM learning environment on students’ higher-order thinking skills of question posing, inquiry, and modeling. The experimental
group included 614 honors 12th grade chemistry students from high schools in Israel who studied according to this learning
unit. The comparison group consisted of 155 12th grade chemistry honors students who studied other chemistry programs. Pre-
and post-tests questionnaires were used to assess students’ higher-order thinking skills. Students’ responses were analyzed
using content analysis rubrics and their statistical analysis. Our findings indicated that the scores of the experimental
group students improved significantly in question posing, inquiry and modeling skills from the pre-test to the post-test.
The net gain scores of the experimental group students were significantly higher than those of their comparison peers in all
three examined skills. In modeling skills, experimental group students significantly improved their achievements in making
the transfer from 3D models to structural formulae, but only about half of them were able to transfer from formulae to 3D
models. By presenting a case-based chemistry assessment tool and content analysis of students’ responses in this paper, we
enable teachers and educators to analyze their students’ higher-order thinking skills both qualitatively and quantitatively. 相似文献
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7.
Assessing high school chemistry students’ modeling sub-skills in a computerized molecular modeling learning environment 总被引：1，自引：0，他引：1
Much knowledge in chemistry exists at a molecular level, inaccessible to direct perception. Chemistry instruction should therefore
include multiple visual representations, such as molecular models and symbols. This study describes the implementation and
assessment of a learning unit designed for 12th grade chemistry honors students. The organic chemistry part of the unit was
taught in a Computerized Molecular Modeling (CMM) learning environment, where students explored daily life organic molecules
through assignments and two CMM software packages. The research objective was to investigate the effect of the CMM learning
unit on students’ modeling skill and sub-skills, including (a) drawing and transferring between a molecular formula, a structural
formula, and a model, and (b) transferring between symbols/models and microscopic, macroscopic, and process chemistry understanding
levels. About 600 12th grade chemistry students who studied the CMM unit responded to a reflection questionnaire, and were
assessed for their modeling skill and sub-skills via pre- and post-case-based questionnaires. Students indicated that the
CMM environment contributed to their understanding of the four chemistry understanding levels and the links among them. Students
significantly improved their scores in the five modeling sub-skills. As the complexity of the modeling assignments increased,
the number of students who responded correctly and fully decreased. We present a hierarchy of modeling sub-skills, starting
with understanding symbols and molecular structures, and ending with mastering the four chemistry understanding levels. We
recommend that chemical educators use case-based tools to assess their students’ modeling skill and validate the initial hierarchy
with a different set of questions. 相似文献
8.
Dori Grinenko Baker 《Religious education (Chicago, Ill.)》2013,108(3):320-339
Abstract Girlfriend Theology is a method of religious education by which women who have found power, voice, and authority might nurture resilience in adolescent girls within faith communities. This essay relates one portion of a larger project involving ethnographic research with fifteen females. These females gathered in small groups and followed a four‐part method that began with one person telling a story from her life. This paper shares one of these ninety‐minute story sessions in which a religiously diverse group engages in God‐talk. From four such Girlfriend Theology sessions arose seven theological assertions—statements about God, humanity, and communities of faith—that sometimes affirmed and sometimes challenged traditional interpretations. These assertions reflect emancipatory theological motifs when analyzed through the lens of womanist, mujerista, and Asian‐feminist theology. This essay draws connections between the story session reported and two of the seven theological assertions of Girlfriend Theology. What would it mean for a girl—against the stories read, chanted, or murmured to her—to choose to tell the truth of her life aloud to another person at the very point at when she is invited into the larger cultural story of womanhood—that is, at . . . adolescence? —Lyn Mikel Brown, Telling a Girl's Life 相似文献
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10.
Revital T. Tal Yehudit J. Dori Shoshana Keiny 《International Journal of Science Education》2013,35(3):247-262
Science-Technology-Environment-Society (STES) orientation in science education is currently being implemented in Israeli high schools within the framework of 'science for all' reform worldwide. This paper focuses on assessing the conceptual change of teachers who have been involved in the development, implementation, field-testing and evaluation of several modules. These modules constitute a grade 10-11 high school national curriculum titled STEMS - 'Science, Technology, Environment in Modern Society'. STEMS is aimed at developing an autonomous learner, capable of system thinking, decision making and problem solving within the real life STES context. We sensed that the intrinsic nature of STEMS curriculum requires that the teachers, who will teach it, will also be the developers of its modules. Involvement of this kind makes the teachers responsible for their own conceptual change, explanations and interpretations. Our formative evaluation indicates that the conceptual change of STEMS teachers was gradual. Participants differed with respect to what sort of 'treatment' or experience within the project actually affected who and when. It was apparent that the change occurred with respect to both their content knowledge and pedagogical views. A positive response towards teaching beyond the discipline boundaries was followed by teachers' active involvement and participation in the development process and team discussions. Thus, the STEMS project affected their teaching/learning perception towards interdisciplinarity. These findings are in accord with teachers' support of a life cycle approach for curriculum development as being suitable for achieving the STEMS objectives. The teachers emphasized the need to practice together with their students scientific inquiry and experiment design skills which, foster an autonomous learner. At the end of the first year of the curriculum development process, STEMS was finally conceptualized by the project teachers as a novel way of learning, rather than another sophisticated teaching technique. The major conceptual change was, the switch teachers made from the role of knowledge providers into that of learners. The interplay among action, participation and conceptualization turned out to be instrumental in our life cycle approach for developing the STEMS curriculum. 相似文献