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Campbell AM Zanta CA Heyer LJ Kittinger B Gabric KM Adler L Schulz B 《CBE life sciences education》2006,5(4):332-339
We have developed a wet lab DNA microarray simulation as part of a complete DNA microarray module for high school students. The wet lab simulation has been field tested with high school students in Illinois and Maryland as well as in workshops with high school teachers from across the nation. Instead of using DNA, our simulation is based on pH indicators, which offer many ideal teaching characteristics. The simulation requires no specialized equipment, is very inexpensive, is very reliable, and takes very little preparation time. Student and teacher assessment data indicate the simulation is popular with both groups, and students show significant learning gains. We include many resources with this publication, including all prelab introductory materials (e.g., a paper microarray activity), the student handouts, teachers notes, and pre- and postassessment tools. We did not test the simulation on other student populations, but based on teacher feedback, the simulation also may fit well in community college and in introductory and nonmajors' college biology curricula. 相似文献
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Tami Levy Nahum David Ben‐Chaim Ibtesam Azaiza Orit Herskovitz 《International Journal of Science Education》2013,35(10):1315-1336
Today’s society is continuously coping with sustainability‐related complex issues in the Science‐Technology‐Environment‐Society (STES) interfaces. In those contexts, the need and relevance of the development of students’ higher‐order cognitive skills (HOCS) such as question‐asking, critical‐thinking, problem‐solving and decision‐making capabilities within science teaching have been argued by several science educators for decades. Three main objectives guided this study: (1) to establish “base lines” for HOCS capabilities of 10th grade students (n = 264) in the Israeli educational system; (2) to delineate within this population, two different groups with respect to their decision‐making capability, science‐oriented (n = 142) and non‐science (n = 122) students, Groups A and B, respectively; and (3) to assess the pre‐post development/change of students’ decision‐making capabilities via STES‐oriented HOCS‐promoting curricular modules entitled Science, Technology and Environment in Modern Society (STEMS). A specially developed and validated decision‐making questionnaire was used for obtaining a research‐based response to the guiding research questions. Our findings suggest that a long‐term persistent application of purposed decision‐making, promoting teaching strategies, is needed in order to succeed in affecting, positively, high‐school students’ decision‐making ability. The need for science teachers’ involvement in the development of their students’ HOCS capabilities is thus apparent. 相似文献
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Jill Adler Sarmin Hossain Mary Stevenson John Clarke Rosa Archer Barry Grantham 《Journal of Mathematics Teacher Education》2014,17(2):129-148
This article reports an investigation into how students of a mathematics course for prospective secondary mathematics teachers in England talk about the notion of ‘understanding mathematics in depth’, which was an explicit goal of the course. We interviewed eighteen students of the course. Through our social practice frame and in the light of a review of the literature on mathematical knowledge for teaching, we describe three themes that weave through the students’ talk: reasoning, connectedness and being mathematical. We argue that these themes illuminate privileged messages in the course, as well as the boundary and relationship between mathematical and pedagogic content knowledge in secondary mathematics teacher education practice. 相似文献
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Chaim Peri 《Journal of Jewish Education》2013,79(2-4):53-68
In the early 1980s, an influx of child immigrants from Ethiopia forced Youth Aliyah and some of its affiliated youth villages to return, unequivocally, to their initial calling. Yet, reports from the field at that time exuded the sort of spirit expressed by one educator: “The situation in the youth villages that opened their doors wide to the underprivileged is getting worse and worse…. Let's be honest with ourselves: the institutions are attempting to solve today's problems with yesterday's tools (emphasis in the original).1 Research studies at that time, too,2 attested to “disappointing facts” (cf. Adiel's introduction [1980] to a collection of studies). A decade of education, which began when the Jewish Agency entered into a covenant with the Government of Israel and undertook to educate underprivileged Israeli children in Youth Aliyah residential settings, ended in an atmosphere almost bereft of commitment to the original Youth Aliyah mission: providing readily available and suitable frameworks for the accommodation of Jewish youth from any potential source of immigration, however unexpected. 相似文献
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PROSPECTS - The world is experiencing crises related to the cascading effects of anthropization. These crises result from imperialist and capitalist practices that categorize and exploit the other... 相似文献