化学实验基本方法教学设计(2)

2019-04-23 19:53

living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \n rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks

八、板书设计:(课时一)

ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River coulmake up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \is the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural iand other deep integration, develop leisure, travel

d not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Onece food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension (课时二)e agricultural\otracted \nfrastructure, enhanliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \ is a village in rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks

九、教学过程设计

第一课时

【教学流程】 教学环节 时间 教师活动 活动1:2教学内容 学生活动 设计意图 回答]固体、液体的体会实验是[问题]回顾初中[学生讨论、取用、物质的加热、以及基本创设情分我们所学习的化仪器的使用。 化学学习的境,引入钟 学基本实验操作新课。 有哪些? [问题]一般情况下,怎 基本手段。体会实验过程中安全的样取用固体、液[学生回答] 固体盖住试管低、重要性。 液体1~2ml。 体? [讲解]为了完成更多的实 验,我们还需进 一步学习一些基 本的实验方法和 基本操作。 讲述氧气的发现观看实验事故的图片资料。 史。 多媒体展示图片 ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \n rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks 提出问题: 分组讨论,完成学案。 自主学习,了解如何使实验顺利进行并掌握实活动2: 分组讨 论,组间 交流 5①初中化学实验 (建议5—6人一组) 过程中涉及到哪组间交流,达成共识。 些实验安全问 ①事故预防 题?如何避免? *防爆炸:点燃可燃气体或用可验安全方②实验中出现意燃气体进行反应之前,要检验法。 外如何处理? 气体的纯度。 至分类整理,有序*防暴沸:配制硫酸的水溶液 7记忆。 时,要将密度大的浓硫酸倒入学会合作学水中;加热液体混合物时要加习。 沸石或碎瓷片。 分*防爆炸 钟 *防暴沸 *防失火 *防中毒 *防倒吸 *防污染 *防失火:实验室中的可燃物质 要远离火源,检查灭火设备是 否齐全 学会分类、*防中毒:制取有毒气体(Cl2、归纳、总结CO、SO2、H2S、NO等)时,的学习方要在通风橱内进行,并采取相法。 应的措施处理(灼烧、吸收、 收集)。 *防倒吸:加热法制取气体并用 排水法收集时,注意熄灯顺序; 吸收溶解度较大的气体(HCl、 NH3)时,加装安全瓶或漏斗。 以讨论*防污染:废弃物处理集中回实验中安全收,统一处理。 ②意外事故处理 问题及处理方法为明*创伤处理:先除去伤口的玻线,落实基ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \ is a village in rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks*创伤处理 璃,用双氧水擦洗消毒或涂碘本的安全措酒,而后敷药包扎。 施和意外事*烫伤、烧伤处理:用75%-95%故的紧急处*烫伤、烧伤处理 的酒精轻涂伤处,再涂烫伤药理方法,学 *酸碱腐蚀处理 膏;严重者立即就医。 *酸碱腐蚀处理: 浓酸撒在 实验台上 浓酸沾在皮肤上 浓碱沾在皮肤上 酸、碱溅入眼中 会识别化学品安全使用标识。同时落实化学实验基本操作方法。 *其他化学灼伤*其他化学灼伤处理:汞洒落,处理 立即撒上硫粉,并打开排气扇;磷灼伤,用CuSO4溶液涂抹伤处。 2 1.过渡:为了引起高度注意,学会识别常人们在装危险药品的容器上的用危险化学明显位置贴上醒目的标志。 品的标志。 分 钟 指导阅读 2.阅读理解:《必修1》第四初步学会应页资料卡片,化学实验室常见用所学知识危险品及其保存。 解决实际问3.应用:举例(高锰酸钾、氯题。 酸钾、白磷、烧碱;硫酸、硝 酸、氢氟酸等) 活动3:5教师介绍粗盐的1、学生小组实验 过渡到应用 现 象 实验报分成分(泥沙、2、填写实验报告: 告,实际钟 NaCl、MgCl2、粗盐提纯: 步 骤 应用。 CaCl2、硫酸盐) ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travelliving standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. \s rule\he County invested 2.169 billion yuan, similar counties line the city's first complete the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, the County removed Black and odorous River, River waste, beginning of river ecological restoration effects. \demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed \on square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level \nced. These achievements are hard won and should be appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires \no filth, dirty environment illegal buildings, into a well-off\pal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, \of XX beautiful\Nong\nvironment there are a number of weaknesses and gaps, highlighted in the following five aspects: first, agriculture remained \d in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. \n smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too little. \d in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in \se. \of rural sanitation situation has not changed. \n rural housing construction planning, construction of disorder, no drawings, no construction, no vetting \nomenon, heap lying there. \Bad\base, village governance is poor. Thirdly, farmers continued to be \nt\d%ural labor force accounted for 70% over the age of 50. \Big\nce, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty alleviation and 191. \d\\peasants. Four water effects still lacks 活动4:学生实验4思考与讨分论 钟 3请同学设2计实验方分案 钟 板演、展示 1教师质疑 (1)溶解:称取约4 g粗盐加到盛有 约12 mL 水的烧杯中 (2)过滤 (3)蒸发: 仅通过溶解、过滤、蒸发培养学生的得到的固体是纯净的食盐吗?思维能力,可能还含有什么杂质?用什么掌握常见离方法可以检验出它们呢? 离子检验【实验1-2】 子的检验方法。 除去粗盐中含有的可溶性培养学生设CaCl2、MgCl2及一些硫酸盐,进计实验方案一步提纯食盐。参考:一些物的能力。 质的溶解性资料卡片 小组对实6引导 分验方案进钟 行交流。 培养学生严杂 质 加入的试剂 化学方程式 硫酸盐 MgCl2 CaCl2 谨治学,及时记录的实验作风 培养学生的思维能力 教师质疑 1分 钟 质疑 ⑴如何除尽杂质离子?⑵是否引入了新的杂质离子?⑶如引进了,你如何除去新的杂质离子? 活动5: 5分 总结 钟 师生交流 加入除杂试剂的顺序: ①BaCl2→NaOH →Na2CO3 →HCl ②BaCl2→ Na2CO3 → NaOH →HCl 整理思路,培养学生发散思维、用多种方法解决问题的能力 ompelling.\h the \d, but the flood of scientific enough, before the treatment and water quality improvement after the treatment effect is not obvious, county-wide focus on river still largely inferior five water, swimming the River could not be found. Five is \split\s ahead. Notice of stock there, new construction did not receive timely treatment every year (such as ancestral hall as unauthorised repeated), contrary to the created work is very different from the provincial and municipal standards. Meanwhile, when implementation is not in place, generally only focus on illegal construction demolished, failing that split that is clear, combined demolition, insufficient attention to reconstruction of old residential areas, urban villages, shanty towns and promote poor. o solve these problems, we must enhance the sense of responsibility and urgency, insist on problem-oriented, to take strong measures, efforts to make up the \culture\Board, construction of comprehensive safeguards, \h Gate of XX beautiful\ng. II, and precision Shi policy, and manpower playing good \e agricultural\otracted \cultural\development the work of based, county levels the sector to according to \d agricultural, and and manpower rural, and development farmers\nsisted agricultural rural based status not shake, insisted huinong kulak policy not weakened, insisted reform innovation test not stop, efforts created new era \cultural\situation. (A) to make agriculture more. To establish the concept of agriculture around the people demand, and comprehensively promote the supply side of agriculture structural reform, strive to enhance the quality and efficiency of agriculture and competitiveness. Focus is on doing the four articles. Oneis the steady increase of grain article. Always tighten the string for food security, \bag\nd, to hold land in the adjustment of agricultural planting structure in the \erating the construction of grain ribbons, improving agricultural infrastructure, enhance food production capacity, improve the quality of agricultural products, effectively \ncrease of grain\cond, industry convergence article. Enhance the level of concentration, intensification of agriculture, creating production, processing, distribution, sales and service in one of the agricultural industrial chain, to break down the value chain, improve added value. Pushing forward \net + agricultural\o improve agricultural production, management, and service level, innovating the mode of e-commerce marketing of agricultural products, solve the difficult problem of sales of agricultural products. Agriculture and tourism, education, culture, health, pension and other deep integration, develop leisure, travel


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