初中化学家庭小实验可行性分析报告

初中化学家庭小实验可行性分析 报告 软件系统测试报告下载sgs报告如何下载关于路面塌陷情况报告535n,sgs报告怎么下载竣工报告下载 初中化学“家庭小实验”可行性分析 内容摘要:家庭小实验是课堂教学的一种辅助手段～是素质教育的一 种有效方式～具有课堂教学不可替代的优势及作用。家庭 小实验与课堂教学相辅相成～但是如何让家庭小实验落到 实处～如何让家庭小实验充分发挥作用～这是有待解决的 问题。笔者对家庭小实验的开展现状与影响因素做了一些 分析～提供了一些可行性对策。 关 键 词:家庭小实验 、可行性、分析 新课程改革的宗旨是以学生发展为本～一切为了学生～以学生的需要为中心～高度重视并依靠学生～使学生的潜能得以充分发挥。 初中生尚处在义务教育阶段～刚开始接受化学的启蒙教育～这正是培养他们的学习兴趣～激发他们的学习热情、引导他们不仅学会有关的化学知识、实验操作～同时还是掌握学习化学方法的最佳时期。而充分利用化学实验形象、直观的特点～将他们引入神奇莫测的化学殿堂则是最好的方法。实践表明～学生通过“学生小实验”～获得了进一步学习和发展所需的基础知识和基本技能,通过训练～培养了合作精神和社会责任感～提高了未来公民适应现代社会生活的能力。 一、“家庭小实验”的开展现状 化学实验是中学化学教育的重要组成部分～但就目前的实际情况来说～化学实验并未发挥出它的重要作用。发人深省的是一些学生对实验结果是对答如流～实验操作能力却差强人意～对实验设计、方法、步骤是知其然不知其所以然。“家庭小实验”和“调查与研究”～充分体现了课程新标准的精神～重在提高学生学习能力和转变学生学习方式为目的。实验活动本身是一种复杂的活动～其中既有操作活动～their own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development. 又有思维活动,既有智力因素～也有非智力因素,既有知识经验成份～又有技能经验成份～可以使学生进一步知道和理解化学基础知识～激发探究科学的欲望～学生知道该做什么和怎么做～以及为什么这样做。 下表是对学生已经完成的家庭小实验的调查摸底情况: 序号 实验内容 完成情况 ? 1+1是否一定等于2 容易成功～用黄豆和绿豆混合 从生活中获取成功的喜悦～化学知识在生活中? 自制简易净水器 升华。 铅笔芯的导电性和润滑性? 容易成功 验 不完全燃烧蜡烛～制炭黑实? 材料易得～效果好 验 探究鸡蛋壳里可能含有的? 用醋与蛋壳反应～慢 质 ? 淬火和回火 可以完成～效果明显 时间长～农村寄宿学生要带到学校做～完成率? 制取明矾晶体 在5%左右徘徊～除非在化工商店～明矾不容易 买到 少数有成果～农村的学生买不到柠檬酸和小苏? 自制汽水 打但一般不敢喝自己的作品 ,9, 清洗餐具 培养亲情的好机会～不容错过～珍惜: ,氢氧化钠老师提供,学生最感兴趣～成品展,10, 制作叶脉 书 关于书的成语关于读书的排比句社区图书漂流公约怎么写关于读书的小报汉书pdf 签 示最集中 ,11, 保险膜保鲜能力测试 最容易完成～耗用时间较长 ,12, 对蜡烛及其燃烧的探究 容易完成～加深了学生对观察和描述的印象 ,13, 吸入和呼出的气体的不同 30%的学生能完成～有的学生无法找到石灰 ,14, 分子运动的测试 容易完成 ,15, 金属的腐蚀和防护 有部分学生已经完成～但是时间较长 ,16, 溶解时的吸热和放热 大部分学生完成了放热的测试 完成情况好～能指出不同的花在同一溶液中的,17, 自制植物指示剂 变色情况可能不同 效果不错～特别是用各种花草的土壤～实验效,18, 土壤酸碱度 果好 “家庭小实验”活动概况 诚然～大多数实验和研究课题都贴近生活、贴近社会～尤其是他们对趣味性实验、微型实验感兴趣的程度～大大出乎我们的意料:很their own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development. 多学生已经建立了自己的“小型家庭实验室”～找到了许多实验材料以及仪器的替代品～既价廉物美～又安全可行～:如输液管、药丸壳、小药瓶、牙签、注射器～输油管等～更可贵的是学生真正 体会 针灸治疗溃疡性结肠炎昆山之路icu常用仪器的管理名人广告失败案例两会精神体会 到 “有用的化学”的实用价值～因为兴趣～有了学习的热情～有了主动的态度～也就有了探索的精神。加之现在数码产品的广泛应用～记录实验全过程显得方便又快捷～使整个实验评价的体系～条理清晰～且活泼生动。 二、“家庭小实验”的影响因素 通过列举出来的家庭小实验的完成情况来看～家庭小实验有完成的可能性～但是也有一部分实验完成得并不理想～有一部分实验农村学生根本无法完成。其主要受下列因素的影响: ,1,家长的不理解和不支持。有些家长认为: “家庭小实验”是“不务正业”～学生的学习应该是与老师有关的活动～所以家长就持否定态度～就更谈不上帮助解决实际问题了。 ,2,由于初中化学的教学时间紧,一学年,～任务重,参加毕业考和中考,～而在化学教学中进行家庭小实验势必要占用一定的教学时间～很多学生认为记住知识点的时间比做实验的时间短～所以不想把时间花在做家庭小实验上。 ,3,时间和器材的消耗: 化学实验需要必须的实验药品和器材～有的学生因为找不到适合的实验器材和药品～所以兴趣大减～所以任务就无法完成。 ,4,学习者的个体差异:不同的成长环境和成长经历～使得学生的知识基础和能力水平各不相同～甚至存在较大的差异～如何才能使家庭小实验面向全体学生～使不同层次的学生的实验能力都能得到相应的提高～这也是一个亟需解决的问题。 ,5,学生间固有关系的影响:学生间固有关系的好坏～会直接影响实验结果的真实性。 三、家庭小实验的应对措施 ,1,取得家长的支持 their own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development. ,2,给与充足的时间和必要的器材～鼓励学生就地取材:烧杯就可以用透明玻璃茶杯代替,玻璃棒就可以用竹筷代替,滴管可用眼药瓶代替,导管可用吸管或输液管代替,饮料瓶、药瓶可做集气瓶,脸盆代替水槽等,再如药品的寻找:一般家庭都配备了生活用品～其中有许多就是我们所用的化学药品～如食盐、蔗糖、食醋、植物油、铁锈、铁钉、铜、酒精等等。还有一些日常生活中经常遇到的化学物质～如石子、蛋壳、生石灰、石灰水、废电池上有锌皮、铜帽、碳棒、碳铵、尿素等药品器材的寻找不一定非要到药品公司去买～只要大家多注意观察和收集～多动动脑～集思广益～总能想出办法来。对于那些学生找不到的药品～老师可以发给学生～让学生带回家做。如制作叶脉书签中所需要的氢氧化钠,制取明矾晶体中所要的明矾。 ,3,调动积极因素～使家庭实验更加生活化、趣味化鼓励学生相互学习相互帮助～取长补短～分享实验成果。 ,4,对一些难度较大～复杂性的实验～老师进行适当的指导～指导学生认真预习实验～分析实验原理、设计实验探究方案。如溶解时的吸热和放热～老师可以指导学生用别的生活中的物质代替。 ,5,教师及时验收评价～对学生的成果进行展示与奖励。 ,6,运用到解答题目上去～开展家庭小实验的一个很重要的目的～就是提高学生化学知识的基础和基本能力。在此基础上～把学到的知识运用到解答题目上去～解答基础题、解答历年中考、竞赛题中的信息给予题～使之融汇贯通～大大地提高学生接受新信息和灵活运用知识解决问题的能力。 只有通过各方面的努力～才能使家庭小实验真正落到实处～充分发挥它在各方面的作用。 their own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development.