In order to explore the development process and research hotspots of American learning sciences, a total of 436 learning sciences projects funded by National Science Foundation (NSF) from 2003 to 2017 were analyzed using the thematic analysis method. According to the results, research areas of these projects includes studies of learning foundation, design and development, practical application of learning sciences, and informal learning. Meanwhile, the change of research hotspots of American learning sciences during the past 14 years can be summarized from three aspects. Firstly, a shift of research focus from the cognitive neuroscience study to the learning culture. Secondly, a focus shift from formal learning situation to the learning environment development and the multidisplinary synergies. Thirdly, a shift from considering how to integrate technology into learning process to addressing the technology enhanced learning and learning performance. Related research objectives in this research involves elementary and secondary school students, undergraduate and postgraduate students, as well as members form special community, such as infants and disabled children.%为了解美国学习科学的发展与研究热点,文章运用主题分析法分析了2003~2017年美国国家科学基金会(National Science Foundation,NSF)资助的436项学习科学研究项目.分析结果显示,美国的学习科学项目的研究领域包括学习基础研究、设计与开发研究、学习科学的实践应用研究以及非正式学习研究.在研究热点变化方面,美国学习科学的研究热点呈现了3个方面的转变,分别是从关注认知神经到关注学习文化、从关注正式学习情境到关注学习环境的开发和多学科的协同加强、从关注学习中的技术应用到关注运用技术强化的学习.研究涉及的对象有中小学生、大学本科生和研究生,以及婴幼儿、残疾儿童、女性等特殊群体.
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