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1、总复习本单元是全册内容的总复习,教材分成两个部分安排。第一部分侧重知识的比较,突出知识的要点,结合整理安排了少量的基础训练。第二部分重在复习,通过一定的综合练习,巩固基础知识,提高学生综合运用知识的能力。三维目标:(一)知识与技能1、帮助学生进一步加深对小数乘除法、四则混合运算、图形的变换和面积计算、倍数与因数、可能性的理解,提高掌握水平。2、使学生进一步沟通并完善知识间的联系,形成完整的认知结构。3、进一步提高学生的计算能力和初步的逻辑思维能力,培养学生的信息素养,发展学生的空间观念。(二)过程与方法通过想一想,议一议,说一说,结合练一练让学生将本册教材所涉及的知识进行归纳梳理,
2、使之系统化,条理化。(三)情感态度与价值观让学生感受学习数学的意义与价值,发展对数学的积极情感,增强学好数学的信心。重点:1、小数乘除法和四则混合运算的法则与顺序。rack,door(gate...Pressurepipeandthemetalstructureinstallation9.1mainengineeringprofileyongxingriverlevelhydropowerstationpressurepipepipelineplaneShangalongRidgeislinelayout,andslopesurfacecontourclosevertical,Gu
3、anPowithoriginalgroundlinechanges,usedopentypeMingtube,singletubejointwaterway,competentdiameter1.3M,long931.00m,tworootnon-symmetric"Bu"typesupporttube,diameter0.8M,singlerootlong8.3M.Competenttoestablish12townPier,107buttress,telescopicsection11.SupportPierspacing8M,side-slidingbearing.Townp
4、ierfortheclosed-endstructureofgravity,basesurfaceintobedrock,pipeexcavationslope1:0.75withM5groutedrubbleslopeprotection,0.3M,bottomsidesewer,0.25mwide,deep0.3m,M5groutedrubblemasonry,setmaintenancestepladderontheleftside,1.0Mwide.Yongxinghe-ⅱhydropowerstationpenstockpipesarrangedalongtheridge
5、lineontheplane,andnearlyverticalslopecontourlines,GuanPochangeswiththeoriginalgroundline,withshallowbackfill-pipe,single-pipewatersupply,thecompetent1.4m,long1063.506m,twoasymmetric"y"pipe,diameter0.8M,single10m.Competenttoestablish12townPier,8expansionjoint.Townpierfortheclosed-endstructureof
6、gravity,placedonsoftrockbasesurface,pipeconcreteC20onapedestal.Pipetrenchexcavationslope1:0.75,aftertheinstallationofsteeltube,compactedgravelbackfillmaterialtothesurface,and1:100slopedrainagetogutters.Gutterwidth0.5Mdepth0.5m,M5groutedrubblemasonry.9.2mainengineeringcontentthisstandardpressur
7、epipeandthemetalstructureinstallationpartmainincludingYunnanprovincetengchongCountyyongxingRiverprimaryandsecondaryhydropowerstationintheofpressurepipeandthepowerstationmetalstructure,whichlevelpowerstationpressurepipetotalabout562t(con