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71.
从培养21世纪人才的高度,对高师本科化学专业教学计划进行修订,提供新教学计划的课程设置模式,有利于促进新教材编写,师资队伍建设和教育科研的进一步开展。 相似文献
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金群芳 《宁波教育学院学报》2007,9(1):89-90
目前学生在课堂教学上缺乏创造力得以发展的学习空间,缺乏一种关系和谐、能力发展的教学氛围。从教学心理、氛围、行为、评价四个方面论述了构建和谐化学课堂的一些措施。 相似文献
74.
刘凌云 《宁德师专学报(自然科学版)》2006,18(4):443-445
环境保护是我国的基本国策,环保教育是中学教学的重要任务.从环保教育的重要性、紧迫性入手,提出当务之急在于构建完备的中学化学环保教育方案,从教材内容、化学实验等方面渗透环保教育进行阐述,使学生树立起环保意识. 相似文献
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Quek Choon Lang Angela F. L. Wong Barry J. Fraser 《Research in Science Education》2005,35(2-3):299-321
This study investigated the chemistry laboratory classroom environment, teacher–student interactions and student attitudes
towards chemistry among 497 gifted and non-gifted secondary-school students in Singapore. The data were collected using the
35-item Chemistry Laboratory Environment Inventory (CLEI), the 48-item Questionnaire on Teacher Interaction (QTI) and the
30-item Questionnaire on Chemistry-Related Attitudes (QOCRA). Results supported the validity and reliability of the CLEI and
QTI for this sample. Stream (gifted versus non-gifted) and gender differences were found in actual and preferred chemistry
laboratory classroom environments and teacher–student interactions. Some statistically significant associations of modest
magnitude were found between students' attitudes towards chemistry and both the laboratory classroom environment and the interpersonal
behaviour of chemistry teachers. Suggestions for improving chemistry laboratory classroom environments and the teacher–student
interactions for gifted students are provided. 相似文献
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Shalini M Yogeeswari P Sriram D Induja S 《Journal of Zhejiang University. Science. B》2007,8(1):45-55
Objective: To study the effect of halo substitution on disubstituted aryl semicarbazones on the anticonvulsant potential and model the activity based on quantum mechanics. Methods: A series of twenty-six compounds of N^4-(4-bromo-3-methylphenyl) semicarbazones were synthesized and evaluated for the anticonvulsant activity in the maximal electroshock seizure (MES) and subcutaneous pentylenetetrazole (scPTZ) seizure threshold tests. Some potential compounds were also tested in the subcutaneous strychnine (scSTY) and subcutaneous picrotoxin (scPIC) seizure threshold tests. The synthesized compounds were tested for behavioral impairment and CNS (central nervous system) depression in mice. Quantum mechanical modelling was carried out on these compounds to gain understanding on the structural features essential for activity. Results: Some compounds possessed broad spectrum anticonvulsant activity as indicated by their effect in pentylenetetrazole, strychnine, picrotoxin and maximal electroshock seizures models in resemblance to other aryl semicarbazone derivatives reported earlier. The higher the difference in HOMO (highest occupied molecular orbital) and LUMO (lowest unoccupied molecular orbital) energy levels was, the greater was the activity profile. Conclusion: The pharmacophoric requirements for compounds to exhibit anticonvulsant activity that includes one aryl unit in proximity to a hydrogen donor-acceptor domain and an electron donor have been justified with the molecular orbital surface analysis of the synthesized compounds. 相似文献
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