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21.
Andrew Gilbert 《Journal of Science Teacher Education》2011,22(5):393-415
This study chronicled the professional journeys of two beginning science teachers. The focus of the research effort documents
what brought them to science teaching and investigated their resulting career paths. Data artifacts for this instrumental
case study approach included: interviews, written survey responses, personal communications and member checks. All data was
transcribed and coded into emergent categories using a constant comparative analysis approach. The findings indicated that
their decisions to enter and leave teaching were a complex mélange of issues that included career disposition, notions of
isolation, overarching culture of the school, and future possibilities. However, most striking was their re-entry into teaching
on a temporary basis after considerable time away from the classroom, which suggests that teachers develop a sense of agency
regarding their career decisions. This may require researchers to reconsider how we view teacher decision-making within the
context of teacher attrition and mobility. Implications for science teacher education indicate that some teachers may enter
the profession considering teaching to be a transition into a different career path. Secondary science teachers may perceive
multiple career options (beyond the classroom) based on their preparation and teaching experience. Further implications and
possibilities for science teacher education are discussed. 相似文献
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We examine classroom situations which allow the learning of rules of mathematical reasoning. Drawing on an epistemological analysis and G. Brousseau's theory of situations, we define a priori theoretical characteristics which such situations must possess. We then use this analysis, and hypotheses about the cognitive functioning of pupils of this age, to establish learning situations for the rule of the excluded middle, and for the use of the figure in geometry. We report the results of experimentation with two of thses situations and show that, through the study of a mathematical problem, debate about these rules can be generated amongst students aged twelve to thirteen. We explain why, in our opinion, for epistemological reasons linked to the two particular rules concerned, it is necessary for the teacher to conclude the debate, and we examine our cognitive hypotheses against the actual results of experimentation. 相似文献
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Gilbert M. Trachtman 《Psychology in the schools》1979,16(3):378-387
An overview of contradictory forces and pulls acting upon school psychology today, a commentary on economic and legislative impact upon the profession, and a discussion of issues such as definition of client, mainstreaming, the individual educational program, due process, and the least restrictive environment as they may affect future professional roles. 相似文献
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