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1、新疆奇台一中高一数学导学案数学改变命运.勤奋造就未来姓名年月日第一章数列§1.1.1数列的概念授课时间第周星期第节课型新授课主备课人李春侠学习目标1.使学生理解数列的定义、能够区分项与项数这两个不同概念;2.使学生掌握通项公式概念,能够用不完全归纳法写出一些数列的通项公式.重点难点重点:数列的定义、通项公式.难点:应用不完全归纳法推导出数列的通项公式.学习过程与方法自主学习:阅读课本的内容,填写下列知识:②一般的,按一定排列的一列数叫做数列,数列中叫做这个数列的项.②数列的一般形式可以写成简记作.③按项数,数列可以分为和两种类型.④茶杯每个1.5元,
2、则购个茶杯所需钱数,购1个,2个,3个,┈,100个茶杯所需钱数(元)排成一列数:.问:如果改变前两个数的位置新成一列数和原有数列相同吗?⑤数列通项公式的定义:精讲互动:(自主完成)知识点一:能由通项公式写出各项例1根据下面的通项公式,分别写出数列的前5项.⑴;⑵知识点二:会由各项不完全归纳法归纳出通项公式例2:写出下面数列的一个通项公式.(1)3,5,7,9,…(2)1,2,4,8,…(3)9,99,999,9999,…personalsafetyandsafetyequipment.5.1.1.6constructionoverallarrang
3、ementofinstruments(seethefollowingfigure)...5.1.3.1.1cabinets,Terminalcabinets,enclosures,UPSbatterycabinetbasehot-rolledanglesteel,hot-rolledangleironandsteelproduction,thesupportbaseasawholeshouldbekeptstraight,theweldsizeoveralldimensionsmeettherequirementsshouldbetheprincip
4、le,Stentpositioningandembeddedpartsafterweldinginprison.5.1.3.1.2bracketmountingholesrequiredonarrivalatthescene,cabinetbaseholedimensionprocessing.Enclosurebasemustbeinthecontrolroomthecontrolroomfloorbeforeyoustarttheinstallationtocomplete,andactivitiesshouldbeconsideredafloo
5、rsupportframesetmatch.Baseinstallationerrorsshowninthetablebelow.Permissibledeviationsmm/mitemsmm/fulllengthstraightlevel1,5,1,5,positionerrorandparalleldegree55.1.3.2systemPanel,cabinetinstallation5.1.3.2.1unpackingandinspection(1)togetherwithowners,supervisioncarriedoutjointl
6、yonbehalfofthecompany,signedaftertheinspectionopeninginspectionrecords;(2)beforeunpacking,onthesurroundingfloors,tablesandchairs,tools,staticeliminationmeasurestaken,checkthedevicepackagingiscomplete;uponopeningthebox,youshouldcheckifthepackagingisdamaged,whetherthewater,moistu
7、re-proof,shock-proofmeasuresisgood;(3)specialtoolsshouldbeusedwhenopeningthebox,presslevel,inordertoopenpackaging;becautious,non-violentbeating;(4)outoftheboxinaccordancewiththepackinglistonebyoneafteraninventoryofallhardware,spareparts,arandomnumberoftools,models,specification
8、s,shouldbeconsistentwiththepackinglist;hardwarelooksgo