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Chai Shaoming Zhu Gaoxia 《Educational technology research and development : ETR & D》2021,69(2):787-808
Educational technology research and development - Knowledge Building is a socio-constructivist approach that aims to engage students in a knowledge-creation environment as early as possible to get... 相似文献
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运动可以重塑大脑海马的结构与功能,改善情绪、增强记忆,对促进个体心理健康及成功老化具有重要意义。从动物学视角看,运动重塑海马结构主要包括运动促进海马神经发生和运动对海马神经元凋亡的双重影响两方面;运动重塑海马功能则集中在运动可以调节海马突触长时程增强效应方面。从人类影像学视角切入,运动重塑海马结构聚焦于运动对海马体积的影响;运动重塑海马功能则涉及运动影响海马激活水平、血流灌注水平及海马与其他脑区的功能连接三个方面。不同运动形式、不同运动剂量对海马作用效果存在差异,其机制涉及脑可塑性假说、脑源性神经营养因子假说和神经递质假说。未来研究可进一步关注海马可塑性与早期应激事件、儿童青少年学习与教育、情绪健康、老年期认知功能以及临床康复领域的关联。研究路径与布局需继续优化实验设计、革新研究技术手段、推进多学科交叉融合,从人毕生发展的角度深入探索运动促进海马健康的认知神经机制,开发运动干预海马相关神经系统疾病的运动处方,从而推进健康关口前移,发挥运动是良医的功效。 相似文献
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Zhu Gaoxia Zeng Yifang Xing Wanli Du Hanxiang Xie Charles 《Journal of Science Education and Technology》2021,30(5):595-607
Journal of Science Education and Technology - Understanding the design process may reveal when and where resources should be focused and how engineers can better use tools, methods, and techniques... 相似文献
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随着计算机和网络技术的不断发展,新的知识和信息呈现指数增长的趋势,这既给大学生带来了不断提升自身能力的机会,又为大学生适应社会的发展带来了挑战。培养21世纪技能是大学生应对挑战的利刃,尤其是创造性思维、协作交流能力以及信息、媒介和技术素养。了解学生的个体因素和社会因素中有哪些会促进这些能力的培养对于有效地大学培养计划至关重要。通过对北京师范大学247名本科生、研究生的研究发现：个体因素中的性别和学科会对三方面技能有显著影响,男生在各个方面均优于女生,但值得注意的是文科生三方面能力均优于理科生;而社会因素中母亲学历与三方面能力呈正相关;与此同时,大学生的三方面技能存在显著的相关性,因此在培养过程中需要综合考虑。 相似文献
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以Web of Science（1990-2020）数据库中运动员大脑磁共振成像研究论文作为研究对象,使用文献计量学及科学知识图谱对相关数据进行分析、梳理和呈现。结果表明：研究热点、技术手段和主题随着时间出现了一定的演化,以运动专家知识系统作为研究主题的热点仍然延续,但多侧重于对动作预期、动作控制的研究选题;近几年近红外脑成像技术开始出现,与磁共振成像技术相结合,研究者针对某个主题采用了多个手段进行探讨;磁共振成像领域中新的扫描序列和新的影像学数据算法已经受到领域内研究者的广泛关注,从任务态过渡到对运动员进行静息态的大脑功能研究,对局部脑区的关注转移到对关键大脑网络进行探讨等。这些研究主题将会给运动认知神经科学的发展带来新的机遇和前景。 相似文献
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探讨北京市义务教育全年龄段学生有氧耐力发展趋势,同时建立相应评价标准。方法:以北京市4658名儿童与青少年为研究对象,以15 m渐进性有氧耐力跑为测试项目,采集其5次有氧耐力成绩,运用“LMS chartmaker”软件构建以15 m PACER为测试项目的北京市义务教育全年龄段学生有氧耐力百分位数曲线和评价常模。结果:运用LMS法拟合的北京市6~15岁学生有氧耐力发展曲线趋势均呈稳步上升-趋于平缓-再上升,男生曲线波动滞后女生1岁,且始终位于女生曲线上方,2条曲线呈“收腰喇叭状”形态;女生相较于男生,群体内部有氧耐力水平分化更为明显。基于上述研究,划定了6~15岁学生15 m PACER成绩的四级评价标准。结论:构建了北京市6~15岁儿童与青少年有氧耐力发展曲线,划定了区分性别和年龄的15 m PACER评价标准,对义务教育阶段儿童与青少年的体质健康和体能的筛查、分析及监测具有实用价值。 相似文献
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Yuqin Yang Zhizi Zheng Gaoxia Zhu Sdenka Zobeida Salas-Pilco 《British journal of educational technology : journal of the Council for Educational Technology》2023,54(4):1025-1045
Preparing data-literate citizens and supporting future generations to effectively work with data is challenging. Engaging students in Knowledge Building (KB) may be a promising way to respond to this challenge because it requires students to reflect on and direct their inquiry with the support of data. Informed by previous studies, this research explored how an analytics-supported reflective assessment (AsRA)-enhanced KB design influenced 6th graders' KB and data science practices in a science education setting. One intact class with 56 students participated in this study. The analysis of students' Knowledge Forum discourse showed the positive influences of the AsRA-enhanced KB design on students' development of KB and data science practices. Further analysis of different-performing groups revealed that the AsRA-enhanced KB design was accessible to all performing groups. These findings have important implications for teachers and researchers who aim to develop students' KB and data science practices, and general high-level collaborative inquiry skills.
Practitioner notes
What is already known about this topic- Data use becomes increasingly important in the K-12 educational context.
- Little is known about how to scaffold students to develop data science practices.
- Knowledge Building (KB) and learning analytics-supported reflective assessment (AsRA) show premises in developing these practices.
- AsRA-enhanced KB can help students improve KB and data science practices over time.
- AsRA-enhanced KB design benefits students of different-performing groups.
- AsRA-enhanced KB is accessible to elementary school students in science education.
- Developing a collaborative and reflective culture helps students engage in collaborative inquiry.
- Pedagogical approaches and analytic tools can be developed to support students' data-driven decision-making in inquiry learning.
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