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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
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Paul Boxer L. Rowell Huesmann Eric F. Dubow Simha F. Landau Shira Dvir Gvirsman Khalil Shikaki Jeremy Ginges 《Child development》2013,84(1):163-177
Bronfenbrenner’s (1979) ecological model proposes that events in higher order social ecosystems should influence human development through their impact on events in lower order social ecosystems. This proposition was tested with respect to ecological violence and the development of children’s aggression via analyses of 3 waves of data (1 wave yearly for 3 years) from 3 age cohorts (starting ages: 8, 11, and 14) representing three populations in the Middle East: Palestinians (N = 600), Israeli Jews (N = 451), and Israeli Arabs (N = 450). Results supported a hypothesized model in which ethnopolitical violence increases community, family, and school violence and children’s aggression. Findings are discussed with respect to ecological and observational learning perspectives on the development of aggressive behavior. 相似文献
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This study presents a qualitative research based on three narratives written by novice mathematics teachers. We examine their unique professional world during their first year of work. The methodology of narrative framework, on which this article is based, helps to gain better understanding of the need for novice mathematics teachers to have pedagogical knowledge. Findings reveal three themes of pedagogical knowledge: the attitude of novice teachers toward students with difficulties in mathematics; parents’ expectations of and involvement with novice mathematics teachers; teacher–student relations. The implications of the findings show that novice mathematics teachers are required to have not only content knowledge of mathematics but also, and above all, pedagogical knowledge. The implications of this study enable reassessment of emphases required in training mathematics teachers, as well as the assistance and support they need, especially as they launch their careers. 相似文献
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Maya Golan Gonen Singer Neta Rabin Dvir Kleper 《Assessment & Evaluation in Higher Education》2020,45(7):988-1000
AbstractIn this study, we suggest combining the monitoring of actual examination time used with grades in order to assess examination time extensions in terms of access provision and expected outcome. Using naturally-occurring data collected from a large sample (N?=?2315) of undergraduate engineering students, we argue that extended examination time may be regarded as providing equal access when a disabled student actually utilizes more examination time than a normally achieving student, regardless of the grade obtained. We further argue that extended examination time may be regarded as resulting in the expected outcome when a disabled student either (a) utilizes less or equal examination time and achieve grades that are lower than a normally achieving student, or (b) utilizes more examination time and achieve grades that are equal to a normally achieving student. In our data, equal access was provided in all courses (i.e. disabled students utilized more time than normal achievers), but the expected outcome (i.e. equal grades) was not observed in software and English examinations. The results of this study emphasize the importance of monitoring actual time usage in addition to performance measures when assessing examination time extensions. 相似文献
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A pulse compressor is utilized in many aspects of signal processing. Compression is usually accomplished by using special matched-filter-signal pairs. An alternative method takes advantage of the fact that any linear dynamic system can be excited to produce a time-limited output. Accordingly for a given dynamic system a synthesis procedure is provided for stepwise-constant input pulses evoking a time-limited response. Pairing the signal and system carefully leads to pulse compression. The Doppler invariant pulse compression is an important special case. Many examples are given. 相似文献
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Shira Dvir Gvirsman 《Mass Communication and Society》2014,17(1):74-97
Today audiences can select content that is consonant with their political notions, and they take advantage of this opportunity. Such partisan selective exposure to media outlets has been identified as one of the reasons for attitude polarization. Little research attention, however, has been devoted to the processes underlying this phenomenon. This article advances the understanding of selective exposure by testing whether its effect on attitude polarization is attributable to people's familiarity with arguments that reinforce or challenge their own opinions. A sample of politically engaged extremists (N = 440) was subjected to a structured interview. As hypothesized, users of partisan media were more familiar with arguments reinforcing their views and, as a result, more prone to polarization. Knowledge of challenging arguments, however, was not affected by consumption of partisan media, nor did it promote depolarization. Results are discussed in light of two conflicting theories: the persuasion and the motivational-reasoning model. 相似文献