新课程背景下的化学实验教学的方法路径VIP免费

新课程背景下的化学实验教学的方法路径Underthebackgroundofnewcurriculumchemistryexperimentalteachingmethodofpath实验是高中化学课程的重要组成部分，无论是必修教材还是选修教材，都将化学实验作为学生获取知识、发展能力的重要途径。但在教学现实中，由于新课程知识内容大量增加、教学课时减少、高考难度并没有降低等原因，使得实验这一“软模块”成了被挤压的对象。学生实验能力明显下降，学科素养明显滑坡。加强实验教学，并切实落实在教学行为上，具有重要的现实意义。Experimentisanimportantpartofhighschoolchemistrycurriculum,whethercompulsoryteachingmaterialorelectivetextbooks,willallthechemicalexperimentforstudentstoacquireknowledge,developabilityofimportantways.Butintherealityofteaching,becauseofincreasedknowledgecontentofnewcurriculum,teachinghours,difficultyofthecollegeentranceexaminationdidnotdecrease,makestheexperimentobjectof"softmodule"hasbeensqueezed.Studentsexperimentalabilitydecreasedobviously,subjectqualitydecline.Strengthenexperimentteaching,andpracticalimplementationinteachingbehavior,hasimportantpracticalsignificance.一、全面规划，统筹实验教学内容One,comprehensiveplanning,experimentalteachingcontentsasawhole新课程突出了实验教学的地位，强化了实验在各章节中的引领、研究、获取结论、应用结论的作用。教学中，必须对实验教学内容进行全面规划，统筹安排，使之既与化学知识的教学密切配合，为讲解新知识提供鲜明、生动的感性认识，又能有步骤、循序渐进地培养学生的实验能力。Newcurriculumhighlightsthepositionofexperimentteaching,tostrengthentheexperimentledinthechapters,researchandconclusion,theapplicationeffectisobtained.Teaching,experimentteachingcontentmustbecomprehensiveplanning,overallarrangement,maketheteachingcloselycooperatewithboththeknowledgeofchemistry,toexplainthenewknowledgeprovidesabrightandvividperceptualknowledge,andstepbystep,graduallycultivatethestudents'experimentability.以苏教版高中化学必修1的教学为例，我们设想将实验能力的培养分为三个阶段：ToSueversionofhighschoolchemistrycompulsoryteaching1asanexample,weassumetheexperimentalabilityisdividedintothreestages:第一阶段，在初中化学的基础上进行基本操作训练，培养学生掌握操作、观察、描述、记录的方法和能力。根据教材内容，具体安排如下实验：（1）药品取用、加热、溶解、过滤、结晶、粗盐提纯；（2）萃取分液、蒸发蒸馏、纸上层析、白酒度数的测定；（3）常见胶体的制备、常见阴阳离子检验；（4）溶液配制。将单项训练与综合练习相结合，基本操作与具体实验相结合的方法，可以使学生的操作技能在具体实验中得到运用，较好地调动学生学习的积极性，防止出现因单纯进行基本操作训练使学生学习兴趣下降的现象。Conductedonthebasisofthefirststage,inthejuniormiddleschoolchemistrybasicoperationtraining,trainsthestudenttomasterthemethodsofoperation,observation,descriptionandrecordandability.Experimentaccordingtotheteachingmaterialcontent,specificarrangementasfollows:(1)druguse,heating,dissolving,filtration,crystallizationandpurificationofcoarsesalt;(2)theupperextractionliquidevaporation,distillation,paperchromatography,winedegreedetermination;(3)commongelpreparation,commonionofYinandYangofinspection;(4)solutionpreparation.Combiningindividualtrainingandcomprehensivepractice,basicoperationcombinedwithaconcreteexperimentmethod,canmakethestudents'skillsintheconcretetobeusedintheexperiments,thebettertomobilizetheenthusiasmofstudentslearning,preventfromsimplebasicoperationtrainingsothatthestudentsinterestinlearningdeclinephenomenon.第二阶段，通过一定数量的演示实验、边讲边实验、学生独立实验，在...