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现代教育对教学提出了新的要求,我们以引导学生掌握知识为"落脚点",培养学生的求异性思维;以引导学生巩固知识为"辐射点",培养学生的"放射性"思维;以引导学生开拓知识为"出发点",培养学生的"前瞻性"思维,从而培养学生的科学思维方式和开拓创新能力。 相似文献
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运用"类比迁移"策略,结合高中物理学"振动图像与波动图像"的知识,指导学生学习高中生物学"动作电位的产生与传导图像"的新知识。 相似文献
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课堂之外——微生物学“翻转课堂”的改革实践 总被引:1,自引:0,他引:1
介绍了华中农业大学在微生物学教学过程中进行"翻转课堂"的教学改革实践,从课堂教学、课后作业、课程论文、主题讨论、在线答疑等方面积极引导学生在生活中自主学习微生物学相关知识,将"翻转课堂"与传统课堂相结合,实现了教学由"课程传授"向"知识内化"转变,学生不仅掌握了微生物学相关知识,而且能够自主串联、主动学习,真正实现了课堂翻转。 相似文献
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在围绕染色体组相关知识的例题讲解中,对于染色体整体知识有详细的分析,并在此基础上掌握染色体相关知识的综合运用能力,更加透彻的巧用染色体组的"数学定义"进行解题。 相似文献
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以"蚊子"作为主线贯穿于"种群的特征"教学中,将教学模块的知识点串联起来,让学生从生活中获取知识,自主构建知识体系并应用于实践,顺利完成教学内容,提升学生的生物学核心素养。 相似文献
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在"现代生物进化理论的主要内容"高三一轮复习课教学中,以"装在试管里的进化"——大肠杆菌的进化研究为情境,通过材料探寻、经典实验分析及验证实验设计、概念图构建、知识应用等环节,引导学生自主回顾知识、建立知识框架,真正树立生物进化的观点和辩证唯物主义观点,同时提升科学思维、科学探究能力,加深对科学本质的理解和感悟. 相似文献
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In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980. 相似文献
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