The definition of geodesic E-quasiconvex functions is established in a geodesic metric space. Meanwhile, the relations of geodesic E-quasiconvex functions, geodesic Econvex functions and geodesic E-almostconvex functi...The definition of geodesic E-quasiconvex functions is established in a geodesic metric space. Meanwhile, the relations of geodesic E-quasiconvex functions, geodesic Econvex functions and geodesic E-almostconvex functions are studied. Furthermore, the notion of E-epigraphs is generalized to geodesic E-epigraphs and a characterization of geodesic E-quasiconvex functions in terms of its geodesic E-epigraphs is considered.展开更多
PBL(Problem Based Learning)是一种以问题为核心,以解答问题为驱动力,以分组阐述、展示、讨论及相互交流为手段,以激发学生积极主动自学、培养学生创新性思维为主要目标的全新的教学模式。这种教学模式有利于培养学生的独立自学能力、...PBL(Problem Based Learning)是一种以问题为核心,以解答问题为驱动力,以分组阐述、展示、讨论及相互交流为手段,以激发学生积极主动自学、培养学生创新性思维为主要目标的全新的教学模式。这种教学模式有利于培养学生的独立自学能力、创新思维能力、资料组织能力以及创新能力。本文通过文献研究PBL在教育教学中的应用,结合VEX机器人的学习特点,以及笔者参与2011年全国大学生VEX工程挑战赛"大破栅门"的实践经验,提出基于PBL的VEX机器人学习策略。展开更多
基金Supported by the National Natural Science Foundation of China(11074099)
文摘The definition of geodesic E-quasiconvex functions is established in a geodesic metric space. Meanwhile, the relations of geodesic E-quasiconvex functions, geodesic Econvex functions and geodesic E-almostconvex functions are studied. Furthermore, the notion of E-epigraphs is generalized to geodesic E-epigraphs and a characterization of geodesic E-quasiconvex functions in terms of its geodesic E-epigraphs is considered.
文摘PBL(Problem Based Learning)是一种以问题为核心,以解答问题为驱动力,以分组阐述、展示、讨论及相互交流为手段,以激发学生积极主动自学、培养学生创新性思维为主要目标的全新的教学模式。这种教学模式有利于培养学生的独立自学能力、创新思维能力、资料组织能力以及创新能力。本文通过文献研究PBL在教育教学中的应用,结合VEX机器人的学习特点,以及笔者参与2011年全国大学生VEX工程挑战赛"大破栅门"的实践经验,提出基于PBL的VEX机器人学习策略。