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171.
Cindy S. Ticknor 《Educational Studies in Mathematics》2012,81(3):307-323
Advisory committees of mathematics consider abstract algebra as an essential component of the mathematical preparation of secondary teachers, yet preservice teachers find it challenging to connect the topics addressed in this advanced course with the high school algebra they must someday teach. This study analyzed the mathematical content knowledge that developed in preservice teachers during a semester course in abstract algebra utilizing Lerman's “person-in-practice-in-person” lens. This unit of analysis provided insights into the situated nature of the algebra learned by illuminating how the goals of the instructor and preservice teachers impacted the community of practice created in the university classroom and how participating in that community impacted the preservice teachers' mathematical identities. 相似文献
172.
Predicting the Wind 预测风向To sell their energy, wind-farm operators need to predict when they can deliver the power, but wind is skittish(多变的)and unpredictable. Researchers are hoping that artificial-intelligence techniques will make wind-energy forecasts more accurate. A method developed at Northern Ireland' s University of Ulster assesses past wind-flow patterns to predict 相似文献
173.
Rein De Cooman Sara De Gieter Roland Pepermans Cindy Du Bois Ralf Caers Marc Jegers 《International Journal for Educational and Vocational Guidance》2007,7(2):123-136
This article compares individuals already in teaching and non-teaching teacher graduates, and explores the motivation to pursue a teaching job based on job motives and work values. From the response of 241 recently graduated teachers it may be concluded that teachers consider intrinsic, altruistic and interpersonal features as strong job-specific motivators. Furthermore, teachers prefer altruistic and interpersonal work values, while non-teachers are more attracted by individualistic work values such as career opportunities and executive power. 相似文献
174.
ABSTRACTThis article presents a large-scale evaluation study of over 3000 9–14-year-old students who participated in an engineering workshop during their school fieldtrips. Student perceptions right before and after, as well as two weeks after the workshop were captured and examined. Before the workshop, younger students and boys, generally exhibited higher interest, higher self-efficacy, and less negative stereotypes for engineering than their counterparts. Also, Caucasian students had higher self-efficacy and lower negative stereotypes than Hispanic students. Students’ interest, self-efficacy, negative stereotype, and utility perceptions of engineering were significantly improved right after the workshop, and improved perceptions were maintained at the delayed-post (follow-up) survey. The results indicate that fieldtrips can significantly improve students’ perceptions towards engineering and improved perceptions are not limited to the workshop day, but persist afterwards. The gender and ethnic differences in engineering perceptions in the youngest age group indicate that outreach interventions should begin in elementary school. 相似文献
175.
Cindy Cruz 《International journal of qualitative studies in education》2019,32(2):136-150
In this article, I examine the engagement of pre-service teachers with US feminist of color theory. Centering coalition relations, re-mediation, and dialogic narrative, I argue that the field of women of color thought is pedagogical in thinking through the intersectional and multidimensional problems of teaching and schooling, particularly when working with under-resourced schools and displaced and dispossessed students and their families. A framework based on the intellectual labor of US women of color, where the pedagogies of coalition, re-mediation, and dialogic narratives create powerful epistemological interventions that support pre-service teachers as they think about the complex problems of schools in this era of the defunding and the dismantlement of public education. It is a US women of color pedagogy that engages teachers in developing alternative accounts of their relationship to the world, how these new accounts are unavoidably theoretical and provide a starting point for new thinking about pedagogy, power, and praxis. 相似文献
176.
A paradigm of specialized brain hemisphere processing abilities was used to test cognitive skills and cognitive style in "learning-disabled" (LD) and "normal" children. Results indicate that (1) verbal ability is not a unitary factor, and LD children are deficient in only some aspects of verbal ability; (2) the LD group perform as well as the control group on right-hemisphere tests; (3) LD boys are more field sensitive (field dependent) than the control boys; (4) LD children may be attempting to use a nonverbal information processing mode to deal with academic tasks. The need for information on nonverbal processing skills in order to aid verbal processing is discussed. 相似文献
177.
Cindy S. York Peggy A. Ertmer 《Educational technology research and development : ETR & D》2011,59(6):841-863
Evidence suggests that experienced instructional designers often use heuristics and adapted models when engaged in the instructional
design problem-solving process. This study used the Delphi technique to identify a core set of heuristics designers reported
as being important to the success of the design process. The overarching purpose of the study was: (1) to examine and describe
the heuristics that guided instructional designers’ practice and (2) to identify the relationship between these heuristics
and key competencies of the discipline, as outlined by the International Board of Standards for Training, Performance, and
Instruction. Sixty-one heuristics were ultimately identified (reached consensus). All 61 aligned with at least one of the
four categories of IBSTPI, with some aligning with more than one. More specifically, 17 heuristics aligned with Professional
Foundations competencies, 17 aligned with Planning and Analysis competencies, 18 aligned with Design and Development competencies
and 10 aligned with Implementation and Management competencies. By examining instructional design heuristics, we hope to better
understand the potential genesis and/or future application of each heuristic. Results provide insights into the specific heuristics
experienced designers perceive as being effective during the ID process. 相似文献
178.
Thomas W. Jones Barbara A. Price Cindy H. Randall 《Decision Sciences Journal of Innovative Education》2011,9(3):379-394
A study was conducted at a southern university in sophomore level production classes to assess skills such as the order of arithmetic operations, decimal and percent conversion, solving of algebraic expressions, and evaluation of formulas. The study was replicated using business statistics and quantitative analysis classes at a southeastern university. The intent of the study was to determine math deficiencies among college students and to ascertain whether or not these deficiencies impact grades. Data analyses compared students’ test results and grades from the different classes at the two universities and identified surprising patterns across classes, universities, and professors.These results support the need for curriculum modifications to address the identified deficiencies. 相似文献
179.
Multiple and rapid changes in brain development occur in infancy and early childhood that undergird behavioral development in core domains. The period of adolescence also carries a second influx of growth and change in the brain to support the unique developmental tasks of adolescence. This special section documents two core conclusions from multiple studies. First, evidence for change in brain‐based metrics that underlie cognitive and behavioral functions are not limited to narrow windows in development, but are evident from infancy into early adulthood. Second, the specific evident changes are unique to challenges and goals that are salient for a respective developmental period. These brain‐based changes interface with environmental inputs, whether from the child's broader ecology or at an individual level. 相似文献
180.
Zohar Snapir Catherine Eberbach Cindy Hmelo-Silver Jaklin Tripto 《International Journal of Science Education》2013,35(15):2092-2127
ABSTRACTScience education today has become increasingly focused on research into complex natural, social and technological systems. In this study, we examined the development of high-school biology students’ systems understanding of the human body, in a three-year longitudinal study. The development of the students’ system understanding was evaluated using the Components Mechanisms Phenomena (CMP) framework for conceptual representation. We coded and analysed the repertory grid personal constructs of 67 high-school biology students at 4 points throughout the study. Our data analysis builds on the assumption that systems understanding entails a perception of all the system categories, including structures within the system (its Components), specific processes and interactions at the macro and micro levels (Mechanisms), and the Phenomena that present the macro scale of processes and patterns within a system. Our findings suggest that as the learning process progressed, the systems understanding of our students became more advanced, moving forward within each of the major CMP categories. Moreover, there was an increase in the mechanism complexity presented by the students, manifested by more students describing mechanisms at the molecular level. Thus, the ‘mechanism’ category and the micro level are critical components that enable students to understand system-level phenomena such as homeostasis. 相似文献