随着核心素养导向的高中数学课程改革不断深化,探索科学有效的教学方法成为数学教育研究的重要课题。RMI (表示–映射–反演)原则作为一种系统化的数学方法论,强调通过数学表示、映射转换和反演求解的思维过程,将复杂问题转化为可解决...随着核心素养导向的高中数学课程改革不断深化,探索科学有效的教学方法成为数学教育研究的重要课题。RMI (表示–映射–反演)原则作为一种系统化的数学方法论,强调通过数学表示、映射转换和反演求解的思维过程,将复杂问题转化为可解决的模型,对提升学生的数学思维能力具有重要作用。本文基于RMI原则,系统探讨其在高中数学教学中的应用模式与实践路径。With the deepening of the core literature-oriented senior high school mathematics curriculum reform, the exploration of scientific and effective teaching methods has become an important topic in mathematics education research. As a systematic mathematical methodology, RMI (Representation-Map-Inversion) principle emphasizes the thinking process of mathematical representation, mapping transformation and inversion solution to transform complex problems into solvable models, which plays an important role in improving students’ mathematical thinking ability. Based on RMI principle, this paper systematically discusses its application model and practice path in high school mathematics teaching.展开更多
Prof.ZHANG Ying’s group at the Institute of Physics(IOP),Chinese Academy of Sciences(CAS)has teamed up with researchers from domestic universities and the Alamos National Laboratory in the United States to succeed in...Prof.ZHANG Ying’s group at the Institute of Physics(IOP),Chinese Academy of Sciences(CAS)has teamed up with researchers from domestic universities and the Alamos National Laboratory in the United States to succeed in observing current-driven antiskyrmion sliding in experiment,and published their work entitled“Experimental observation of current-driven antiskyrmion sliding in stripe domains”was published in Nature Materials on April 11,2023.展开更多
目的评价CA125、超声检查、恶性风险指数-3(risk of malignancy index,RMI-3)及恶性风险指数-4(RMI-4)对绝经后卵巢肿瘤的诊断价值。方法回顾性分析2008年1月至2010年2月复旦大学附属妇产科医院手术治疗的绝经后卵巢肿瘤患者186例,比较...目的评价CA125、超声检查、恶性风险指数-3(risk of malignancy index,RMI-3)及恶性风险指数-4(RMI-4)对绝经后卵巢肿瘤的诊断价值。方法回顾性分析2008年1月至2010年2月复旦大学附属妇产科医院手术治疗的绝经后卵巢肿瘤患者186例,比较超声检查、CA125水平及2种RMI对附件肿块良恶性判断的敏感性和特异性。结果 4种指标的敏感性分别为90.7%、54.9%、83.7%和84.9%,特异性分别为93.7%、78.9%、96.8%和93.7%,约登指数(Youden index,YI)分别为0.84、0.34、0.81和0.78。四者的诊断效能两两相比,差异均有统计学意义(P=0.00)。造成各指标假阴性的病例以上皮性肿瘤为主,造成假阳性的病例以性索间质肿瘤为主。结论本研究发现目前2种RMI对绝经后卵巢肿瘤诊断的敏感性及YI均低于血清CA125。鉴于绝经后卵巢肿瘤的特殊性,可能需进一步评估CA125在绝经后卵巢肿瘤中的重要性以提高RMI对其的诊断效能。展开更多
文摘随着核心素养导向的高中数学课程改革不断深化,探索科学有效的教学方法成为数学教育研究的重要课题。RMI (表示–映射–反演)原则作为一种系统化的数学方法论,强调通过数学表示、映射转换和反演求解的思维过程,将复杂问题转化为可解决的模型,对提升学生的数学思维能力具有重要作用。本文基于RMI原则,系统探讨其在高中数学教学中的应用模式与实践路径。With the deepening of the core literature-oriented senior high school mathematics curriculum reform, the exploration of scientific and effective teaching methods has become an important topic in mathematics education research. As a systematic mathematical methodology, RMI (Representation-Map-Inversion) principle emphasizes the thinking process of mathematical representation, mapping transformation and inversion solution to transform complex problems into solvable models, which plays an important role in improving students’ mathematical thinking ability. Based on RMI principle, this paper systematically discusses its application model and practice path in high school mathematics teaching.
基金supported by the Strategic Priority Research Program of the Chinese Academy of ScienceNational Natural Science Foundation of Chinathe CAS Project for Young Scientists in Basic Research
文摘Prof.ZHANG Ying’s group at the Institute of Physics(IOP),Chinese Academy of Sciences(CAS)has teamed up with researchers from domestic universities and the Alamos National Laboratory in the United States to succeed in observing current-driven antiskyrmion sliding in experiment,and published their work entitled“Experimental observation of current-driven antiskyrmion sliding in stripe domains”was published in Nature Materials on April 11,2023.
