合作策略在初中生物学教学中的应用     

刘遵阁  王善娥 《生物学教学》2021,(5):16-18

本文结合案例说明教师在初中生物学教学过程中,如何选取适用的合作策略,保证合作活动有序地展开以及学习任务的高效完成。  相似文献   

Learning to Play Soccer: Lessons on Meta-cognition from Video Game Design     

Amy Price  Dave Collins  John Stoszkowski  Shane Pill 《Quest (Human Kinetics)》2018,70(3):321-333

Over the past decade, there has been ongoing debate relating to the use of suitable pedagogical approaches for designing learning environments to develop skillful games players. There has, however, been little consideration of the “digital age of learning” and the global success of the digital video game industry. Using the educational work of James Gee, this article attempts to rationalize how a “digital video games approach” differs from other learner-centered pedagogies currently employed for teaching and coaching games. Examination of the literature suggests that the learning gains from Teaching Games for Understanding and the Constraints Led Approach ignore the meta-cognitive dimension of learning how to play games—surely an important consideration for long-term development. Accordingly, by drawing on experiences from digital video game design, we examine how games practitioners might utilize such an approach for meta-cognition in coaching or teaching practice to stimulate player learning.  相似文献   

Researcher vulnerability: implications for educational research and practice     

Lionel C. Howard  Shane P. Hammond 《International journal of qualitative studies in education》2019,32(4):411-428

This paper explores the concept of researcher vulnerability through a review of the extant research literature and each author’s feelings of vulnerability connected to their research with vulnerable populations while exploring both sensitive and seemingly innocuous, yet important, topics in education using qualitative methodology. Specifically, a reflection of our respective study of the academic and social transitions of student combat veterans, and the academic and gender socialization of adolescent African American males is presented as means of illustrating the phenomena of researcher vulnerability. Implications of vulnerability for research, practice, and theory are discussed.  相似文献   

Winning the battle and losing the war: Examining the relation between grade retention and dropping out of high school     

Shane R. Jimerson  Gabrielle E. Anderson  Angela D. Whipple 《Psychology in the schools》2002,39(4):441-457

The aim of this investigation is to provide a comprehensive review of dropout research that examines grade retention within both associative and predictive models. A systematic review of seventeen studies examining dropping out of high school prior to graduation demonstrates that grade retention is one of the most powerful predictors of dropout status. The discussion addresses the discrepancies among the perspectives of many educational professionals regarding the effectiveness of grade retention and deleterious long‐term correlates. The transactional model of development is presented, which emphasizes developmental trajectories over time, in order to facilitate the interpretation of the association between grade retention and school withdrawal. Educational professionals, teachers, researchers, parents, and policymakers considering the efficacy of grade retention are encouraged to consider the implications of these findings. © 2002 Wiley Periodicals, Inc.  相似文献   

Analogue equivalents in number processing of simple arithmetic sums     

Shane N. Phillipson 《教育心理学》2004,24(2):217-229

This study had two aims. The first was to test the postulate of analogical equivalents in number processing using a stimulus set based on the differences between pairs of numbers, and second, to look for IQ-dependent differences in this processing. Participants were asked to make judgments concerning the differences between pairs of numbers—each number pair being defined according to overall numerical size and level of difference—and to draw the magnitude of the differences using a free-hand line. In agreement with previous findings, results indicated that the magnitude of participants' responses was dependent on the sizes and levels of the differences within the number pairs. In particular, participants' responses to a difference of nine units at the highest level were based on unit lengths smaller in magnitude compared with other number pairs. In contrast, participants' responses to a second test requiring them to estimate the length of a line using an independent number scale showed remarkable accuracy across all lengths. The results of the two tests did not, however, indicate any difference in responses based on IQ. The results gave support to the idea that transformation of numerical quantities to their analogical equivalents occurs during simple arithmetic sums, and that this transformation was flawed as suggested by the number size effect.  相似文献   

Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows     

Yanhua Qu  Chunhai Chen  Ying Xiong  Huishang She  Yong E Zhang  Yalin Cheng  Shane DuBay  Dongming Li  Per G P Ericson  Yan Hao  Hongyuan Wang  Hongfeng Zhao  Gang Song  Hailin Zhang  Ting Yang  Chi Zhang  Liping Liang  Tianyu Wu  Jinyang Zhao  Qiang Gao  Weiwei Zhai  Fumin Lei 《国家科学评论(英文版)》2020,7(1):113

Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.  相似文献   

Thermally multiplexed polymerase chain reaction     

Christopher R. Phaneuf  Nikita Pak  D. Curtis Saunders  Gregory L. Holst  Joav Birjiniuk  Nikita Nagpal  Stephen Culpepper  Emily Popler  Andi L. Shane  Robert Jerris  Craig R. Forest 《Biomicrofluidics》2015,9(4)

Amplification of multiple unique genetic targets using the polymerase chain reaction (PCR) is commonly required in molecular biology laboratories. Such reactions are typically performed either serially or by multiplex PCR. Serial reactions are time consuming, and multiplex PCR, while powerful and widely used, can be prone to amplification bias, PCR drift, and primer-primer interactions. We present a new thermocycling method, termed thermal multiplexing, in which a single heat source is uniformly distributed and selectively modulated for independent temperature control of an array of PCR reactions. Thermal multiplexing allows amplification of multiple targets simultaneously—each reaction segregated and performed at optimal conditions. We demonstrate the method using a microfluidic system consisting of an infrared laser thermocycler, a polymer microchip featuring 1 μl, oil-encapsulated reactions, and closed-loop pulse-width modulation control. Heat transfer modeling is used to characterize thermal performance limitations of the system. We validate the model and perform two reactions simultaneously with widely varying annealing temperatures (48 °C and 68 °C), demonstrating excellent amplification. In addition, to demonstrate microfluidic infrared PCR using clinical specimens, we successfully amplified and detected both influenza A and B from human nasopharyngeal swabs. Thermal multiplexing is scalable and applicable to challenges such as pathogen detection where patients presenting non-specific symptoms need to be efficiently screened across a viral or bacterial panel.  相似文献   

Changing views and perceptions: the impact of the Australian Inside-Out Prison Exchange Program on students     

Marietta Martinovic  Marg Liddell  Shane Douglas Muldoon 《Educational Research and Evaluation》2018,24(6-7):437-453

The Inside-Out Prison Exchange Program has been delivered at 2 prisons in Victoria, Australia, Dame Phyllis Frost Centre and Marngoneet Correctional Centre, since 2015. Selected university (outside) students and prisoners (inside) engage in a collaborative learning environment, studying Comparative Criminal Justice Systems. Students critique complex criminal justice material and undertake university standard assessments. The programme was evaluated through pre-test and post-test surveys and focus groups. This paper outlines this evaluation, including the similarities and differences between inside and outside students’ experience, their knowledge of the criminal justice system, the stereotypes and the values, and challenges of the Inside-Out programme. Student views of the criminal justice system and each other were challenged and changed, often in unexpected ways. The knowledge from this evaluation will contribute to the improvement of Inside-Out processes and outcomes, nationally and internationally.  相似文献   

The social sciences: Current and foreseeable trends     

Harold G. Shane  Bernadine Tabler 《Prospects》1980,10(4):441-455

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共同的语言,相隔千里     

徐翔 《海外英语》2007,(6):30-31

有时候,我在RSS浏览器里,总能读到一系列博客文章,看似不相关,却提出了一种新的观点。不管称它们是偶然发现、群体意识或是机缘巧合,这些文章提出的观点却是我在RSS看新闻时最棒的收获之一。  相似文献