课题空间直线坐标系
授课时间撰写人审核人
学习重点空间直角坐标系是如何建立
学习难点能够在空间直角坐标系中求出点的坐标
学习目标
1.明确空间直角坐标系是如何建立;明确空间中的任意一点如何表示;
2能够在空间直角坐标系中求出点的坐标
教学过程
一自主学习
1.平面直角坐标系的建立方法,点的坐标的确定过程、表示方法?
2.一个点在平面怎么表示?在空间呢?
3.关于一些对称点的坐标求法
关于坐标平面对称的点;
关于坐标平面对称的点;
关于坐标平面对称的点;
关于轴对称的点;
关于对轴称的点;
关于轴对称的点;
二师生互动
例1在长方体中,,写出四点坐标.
讨论:若以点为原点,以射线方向分别为轴,建立空间直角坐标系,则各顶点的坐标又是怎样的呢?
变式:已知,描出它在空间的位置
例2为正四棱锥,为底面中心,若,试建立空间直角坐标系,并确定各顶点的坐标.
练1.建立适当的直角坐标系,确定棱长为3的正四面体各顶点的坐标.
练2.已知是棱长为2的正方体,分别为和的中点,建立适当的空间直角坐标系,试写出图中各中点的坐标
三巩固练习
1.关于空间直角坐标系叙述正确的是().
A.中的位置是可以互换的
B.空间直角坐标系中的点与一个三元有序数组是一种一一对应的关系
C.空间直角坐标系中的三条坐标轴把空间分为八个部分
D.某点在不同的空间直角坐标系中的坐标位置可以相同
2.已知点,则点关于原点的对称点的坐标为().
A.B.C.D.
3.已知的三个顶点坐标分别为,则的重心坐标为().
A.B.C.D.
4.已知为平行四边形,且,则顶点的坐标.
5.方程的几何意义是.
四课后反思
五课后巩固练习
1.在空间直角坐标系中,给定点,求它分别关于坐标平面,坐标轴和原点的对称点的坐标.
2.设有长方体,长、宽、高分别为是线段的中点.分别以所在的直线为轴,轴,轴,建立空间直角坐标系.
⑴求的坐标;
⑵求的坐标;
学习难点空间直角坐标系中两点间的距离公式及推导,并能利用公式求空间中两点的距离.
学习目标
1.通过特殊到一般的情况推导出空间两点间的距离公式
2.掌握空间直角坐标系中两点间的距离公式及推导,并能利用公式求空间中两点的距离.
教学过程
一自主学习
1.平面两点的距离公式?
2、空间直角坐标系该如何建立呢?
3.建立了空间直角坐标系以后,空间中任意一点M如何用坐标表示呢?
4、空间中任意一点与点之间的距离公式:
二师生互动
探究:
⑴点与坐标原点的距离?
⑵如果是定长r,那么表示什么图形?
例1求点P1(1,0,-1)与P2(4,3,-1)之间的距离
变式:求点之间的距离
例2在空间直角坐标系中,已知的顶点分别是.求证:是直角三角形.
练1.在轴上,求与两点和等距离的点.
练2.试在平面上求一点,使它到,和各点的距离相等.
三巩固练习
1.空间两点之间的距离().
A.6B.7C.8D.9
2.在轴上找一点,使它与点的距离为,则点为().
A.B.
C.D.都不是
3.设点是点关于面的对称点,则().
A.10B.C.D.38
4.已知和点,则线段在坐标平面上的射影长度
为.
5.已知的三点分别为,则边上的中线长为.
四课后反思
五课后巩固练习
1.已知三角形的顶点为和.试证明A角为钝角.
2.在河的一侧有一塔,河宽,另侧有点,,求点与塔顶的距离.
每个老师上课需要准备的东西是教案课件,到写教案课件的时候了。需要我们认真规划教案课件工作计划,可以更好完成工作任务!你们知道多少范文适合教案课件?下面是小编为大家整理的“北师大版高二英语必修5全套学案(含答案)”,仅供您在工作和学习中参考。
Ⅱ.完形填空(共20小题;每小题1分,满分20分)
阅读下面短文,理解大意,从题中所给的A、B、C、D四个选项中选出一个最佳选项。
StopWastingYourTimeontheWrongMountain
Ihavetwofriendswhoarebackpackers.ThereisaportionofNewYork’sAdirondackMountainscalledtheHighPeaksregion.Itismadeupof46mountainswitha16ofover4,000feet.
TheAdirondackMountainClubgivesspecialhonorandapatchto17whoclimbsall46mountains.Mytwofinendsdecidedtogoforthis18.Ittookthemseveralyearstoaccomplishit.
Myfriendshadclimbed10ofthemountains.Theleftonewasthefarthest,19mucheffort.Ahikingtrailledpastthebaseofthemountain,20fromthatpointtheywereontheirown.
Earlyonemorningtheylefttheir,21andwalked5milesonthehikingtrailtothebaseofa22ofmountains.Oneofthemountainsinthischainwasthelastonethey23
fortheirpatch.
Whentheyreachedthebaseofthemountainchainthey24thattheyhadlefttheircompassandmapbackinthecamp.25returningtothecamp,theydecidedtogoonwithoutthem.
Forhoursthey26uphillsufferingheatandblackflies.Finally,lateintheafternoonthey27themselvesonthetopofamountain.Theyweretiredbut28.
Theexcitementwasshortlived,however.Whenthey29thevalley,theysawanotherhighermountain.Theyhadclimbedthe30hill!Itwastoolatethatweekendtocorrecttheir
31.Theyhadtowaitanother4monthstoclimbtherightmountain.
Knowingyourlifepurposegivesyoua35personalmapandcompass.Andthatmakessureyouarealwaysclimbingtherightmountain.
16.A.lengthB.heightC.widthD.depth
答案:B此处指山的高度,故选B。
17.A.somethingB.someoneC.anythingD.anyone
答案:D结合语境,这个俱乐部给任何翻越所有46座山峰的人以特别的荣誉。anyonewho=whoever。
18.A.fameB.awardC.medalD.gift
答案:B这里指作者的两个朋友想获得这个奖励。
19.A.requiringB.makingC.wastingD.paying
答案:A从上文知道只剩下最后一座山了,而攀登这座山需要花费很大力气。
20.A.andB.evenC.soD.but
答案:D前面部分有“hikingtrail”的帮助,但是以后就要靠他们自己了。
21.A.villageB.houseC.campD.cottage
答案:C根据后文中“lefttheircompassandmapbackinthecamp”可知答案。
22.A.seriesB.lotC.chainD.kind
答案:C根据后文中“Oneofthemountainsinthischain...”可知答案。
23.A.neededB.preparedC.lookedD.hunted
答案:A此处表示他们需要这最后一座山来达到目的。
24.A.understoodB.thoughtC.forgotD.discovered
答案:D结合语境可知他们突然发现没有带指南针和地图。
25.A.InsteadB.RatherthanC.IncaseofD.Inspiteof
答案:B他们不愿意回去,决定要在没有指南针和地图的情况下,继续爬山。
26.A.rushedB.rolledC.walkedD.ran
答案:C由“Forhours”可知爬山过程比较艰难,只有C项符合语境。
27.A.relaxedB.congratulatedC.enjoyedD.found
答案:D他们在傍晚时刻发现自己终于登上了山顶。
28.A.excitedB.surprisedC.disappointedD.puzzled
答案:A由前面的but可知此处表示转折,他们虽然很疲劳但是却很兴奋。
29.A.lookedforB.lookedacrossC.lookedonD.lookedthrough
答案:B这里指目光越过峡谷,所以B正确。
30.A.highB.rightC.wrongD.small
答案:C根据上文可知他们看到了另外一座更高的山,他们爬错了山。
31.A.directionB.wrongC.decisionD.error
答案:D因为天色已晚,他们无法纠正自己的错误。
32.A.providesB.bringsC.offersD.proves
答案:D这个故事证明了一个道理,D正确。
33.A.choiceB.goalC.promiseD.result
答案:B在生活中,我们经常为了某个目标而付出努力。
34.A.hurtB.separatedC.lostD.bothered
答案:C没有“地图和指南针”,我们很容易迷失方向。
35.A.beautifulB.famousC.expensiveD.powerful
答案:D知道自己的生活目的就会使你拥有强有效的个人地图和指南针。
Ⅲ.阅读理解(共20小题;每小题2分,满分40分)
阅读下面的文章,从选项中所给的A、B、C、D四个选项中选出最佳选项。
A
(2011陕西)
MostpeopleknowthatMarieCuriewasthefirstwomantowintheNobelPrize,andthefirstpersontowinittwice.However,fewpeopleknowthatshewasalsothemotherofaNobelPrizewinner.
BorninSeptember,1897,IreneCuriewasthefirstoftheCuries’twodaughters.Alongwithnineotherchildrenwhoseparentswerealsofamousscholars,Irenestudiedintheirownschool,andhermotherwasoneoftheteachers.ShefinishedherhighschooleducationattheCollegeofSévignéinParis.
IreneenteredtheUniversityofParisin1914toprepareforadegreeinmathematicsandphysics.WhenWorldWarIbegan,Irenewenttohelphermother,whowasusingXrayfacilities(设备)tohelpsavethelivesofwoundedsoldiers.IrenecontinuedtheworkbydevelopingXrayfacilitiesinmilitaryhospitalsinFranceandBelgium.HerserviceswererecognisedintheformofaMilitary’MedalbytheFrenchgovernment.
In1918,Irenebecamehermother’sassistantattheCurieInstitute.InDecember1924,FredericJoliotjoinedtheInstitute,andIrenetaughthimthetechniquesrequiredforhiswork.Theysoonfellinloveandweremarriedin1926.TheirdaughterHelenewasbornin1927andtheirsonPierrefiveyearslater.
Likehermother,Irenecombinedfamilyandcareer.Likehermother,IrenewasawardedaNobelPrize,alongwithherhusband,in1935.Unfortunately,alsolikehermother,shedevelopedleukemiabecauseofherworkwithradioactivity(辐射能).IreneJoliot?CuriediedfromleukemiaonMarch17,1956.
36.WhywasIreneCurieawardedaMilitaryMedal?
A.Becauseshereceivedadegreeinmathematics.
B.Becauseshecontributedtosavingthewounded.
C.BecauseshewontheNobelPrizewithFrederic.
D.Becausesheworkedasahelpertohermother.
答案:B细节理解题。根据文章第三段可知,第一次世界大战开始后,Irene帮助母亲救助伤员,法国政府以军功章的形式表示对她的贡献的认可。所以选择B项。
37.WheredidIreneCuriemeetherhusbandFrederioJoliot?
A.AttheCurieInstitute.
B.AttheUniversityofParis.
C.Atamilitaryhospital.
D.AttheCollegeofSévigné.
答案:A推理判断题。文章第四段说:在1918年,Irene在居里夫人研究院成为母亲的助手,1924年12月FredericJoliot加入了该研究院,Irene交给他该项工作要求的技术,不久他们相爱了,并于1926年结婚,由此可推断出C项正确。
38.WhenwasthesecondchildofIreneCurieandFredericJoliotborn?
A.In1932.B.In1927.C.In1897.D.In1926.
答案:A细节理解题。第四段最后一句表明:他们第一个孩子于1927年出生,5年后(1932年)第二个孩子出生,所以A项正确。
39.InwhichofthefollowingaspectswasIreneCuiredifferentfromhermother?
A.Ireneworkedwithradioactivity.
B.Irenecombinedfamilyandcareer.
C.IrenewontheNobelPrizeonce.
D.Irenediedfromleukemia.
答案:C推理判断题。纵观全文可知,Irene在“与放射性物质打交道/把家庭与事业相结合/死于leukemia”这三方面与母亲相同,不同的是Irene获得一次诺贝尔奖,母亲两次。
B
Thenewspapersellerwasaclean,neatman,ofaboutfortywitharatherserious,unsmilingface.Hedidn’tspeakmuchtothecustomersortohishelpers,butwhenhedidhespokeslowlyandquietly,asiftohimself.Hebelievedinefficiency,notconversation.Andthiswashowtheofficeworkers,rushingtocatchtheirtrains,preferred.
Ithadbeenagoodday.Lunch?timehadbeenwarmandsunny,andmanypeoplehadboughtmagazinestoreadoutsidewiththeirsandwiches.Nowitwascoldandrainy,andpeoplewantedaneveningpaperforcheerlessjourneyaheadandadulleveningindoors.
At6:30,withthemainrushover,hestartedtocollectthemoneytogetherandcountit.Thenheleftthestandandwenthome.Itwastheassistant’sturnthiseveningtolookafteriteighto’clock,whenitwouldbepackedawayforthenight.HislargewhiteMercedes,wasinthecarparkofalargegovernmentbuilding.He’dparkedthereforsixmonths,pretendingtobepartofaheatingfirmworkinginthebuilding.Theywouldfindoutabouthimsoon,andhe’dhavetoparkinagarageagain,whichwasannoying.Theirchargeswerefartoohigh.Acoupleofjuniorclerks,regularcustomers,happenedtoseehimgettingintohiscar.“Mustbealotofmoneyinpapers,eh?”oneofthemshouted.Hejustsmiledcoldlyinreply,andwentintothecar,placingthebagsofmoneyonthefloor.
Hethoughtabouttheclerkonthewayhome.Likethemajorityofhiscustomers,despitetheirwhiteshirtsanddarksuits,theyprobablymadeinaweekasmuchashecouldmakeinagoodday.
40.Itcanbeinferredthatthenewspaperseller,wouldnotpossibly.
A.beacheerfulcompanion
B.trytocheatacustomer
C.earnagreatdealofmoney
D.trusthisassistantmuch
答案:A从第一段第一句中“ratherserious,unsmilingface”可以判断。
41.Theweatherthatdayhadbeen.
A.goodforlunch?timesales,butnotlater
B.goodforearlyeveningsales,butnotearlier
C.badforsalesthroughout
D.goodforsalesthroughout
答案:D从第二段可知,全天都是卖报纸的好天气。
42.Ifpeoplefoundoutthathewasanewspaperseller,hewouldhaveto.
A.parkhiscarinagovernmentcarpark
B.lookforanotherfreeparkinglot
C.paytoparkhiscarinagarage
D.pretendhewasagovernmentemloyee
答案:C如果发现他不是partofaheatingfirm,他就必须到付费停车场停车。
43.Thenewspapersellerthoughtthattheclerkswere.
A.badlydressed
B.verywellof
C.notasrichashimself
D.notashardworkingashimself
答案:C由最后一句话可以判断。
C
InEurope,manypeoplemakefriendsacrossthebordersthroughtowntwinning.Twotownsindifferentcountriesdecidetobecometwintowns.
Theircitizensfindpen-friendsinthetwintown.Theyexchangenewspapersandstamps.Theschoolteachersdiscussteachingmethodswiththeteachersinthetwintown.Officialsvisitthetwintownforcelebrations.Ordinarycitizenstraveltothetown,too,butnotveryoftenifitisfaraway.
Sometimes,schoolsevenexchangeschoolclassesfortwoorthreeweeks.Forexample,GermanmiddleschoolstudentsstudyforawhileattheschoolintheirtwintowninBritain,stayingwithBritishfamilies.Afewmonthslater,theirBritishfriendscometostudyinGermany.
Sometownsevenarrangeexchangevisitsfortheatregroups,choirsandorchestras(管弦乐队).Otherssendlecturestothetwintownwhotellthepeopletherealltheirowntown,andshowphotosandslides.
Sometownsorganizeexhibitionstoshowworksofart,forexamplepaintings,byartistsfromtheirowntown.
ManyBritishtownsaresopleasedwiththeresultofthetwinningthattheysetouttofindmorethanonetwintown.
Tonbridge,amediumsizedtowninKent,forexample,hastwintownsinGermanyandinFrance.RichmondmearLondonhaslinkswithGermany,FranceandatowninformerYugoslavia.
Ithelpsstudentstoimprovetheirlanguageskills,anditcontributestointernationalpeaceandunderstanding.
44.Whichofthefollowingcan’tyoufindinthispassage?
A.Newspapersandstampsareexchangedbetweentwintowns.
B.Businesstradeisdevelopedinthetowntwinning.
C.Teachersofthetwintownsoftendiscussthescientificwaysofteaching.
D.Lecturersaresenttothetwintownwhotellthepeoplethereabouttheirowntown.
答案:B细节理解题。从第二、三、四段可知。
45.Twintownsdevelop .
A.betweenEuropeancountriesandChina
B.intheEnglish?speakingcountries
C.betweencountriesnotfarawayfromeachother
D.betweendifferentcountries
答案:D推理判断题。根据文章内容轻易排除A、B两项,C项错在eachother。
46.The“itcontributestointernationalpeaceandunderstanding”hassimilarmeaningto“ ”.
A.ithelpspeoplebetweencountriestoknoweachotherbetterandlivepeacefully
B.itencouragespeopletodosomethingforthepeaceoftheworld
C.itmakespeopleunderstandtheinternationalpeace
D.Itisgoodforstudentstolearnthelarguagebetterbyunderstanding
答案:A细节理解题。contributeto意为“有助于”。
47.Whichcanbethebesttitleofthepassage?
A.Towntwinnning
B.FriendlyTowns
C.ExchangeTeachersandStudents
D.InternationalPeaceandUnderstanding
答案:A主旨大意题。文章主要讲述了欧洲不同国家之间建立姊妹城市的内容。
D
ThebestMother’sDaygiftIeverreceivedwasamagnolia(木兰)tree.Atfirst,itwasalittlething,butitwasmine,andIknewIwouldtreasureit.
Magnoliatrees,yousee,weremymother’sfavorite.WehadoneinthefrontyardofourhousewhenIwasgrowingup.IcanstillrememberMom’spleasureinseeingit.“Oh,look!”she’dshouteveryyear.“Themagnoliatreeisgoingtobloom(开花).”OnApril6,herbirthday,thepinkandwhiteflowerswouldbealloverthebranches,announcingthearrivalofspring.
Backthen,Ididn’tfindthebloomingofatreetobeaneventworthyofcelebration.Butmymotherhadawayofappreciatingthesmallestthings.Ababy’ssmile,oracallfromanoldfriendfilledherwithhappiness.
OnthefirstMother’sDayfollowingherdeathsixyearsago,Iwasn’tsurehowI’dlive.Ifeltmymotherwaseverywhere.
ThatSundaymorningIawoke,wonderingwheremyhusbandDavidhadgonewithourtwodaughters,Kira,4,andSophie,9months.AsIwaslyinginbed,enjoyingthepeace,Kirasuddenlyburstthroughthebedroomdoor.
“Lookoutside,Mommy!”shesaid.Iraisedthewindow.NexttoDavidwasalittletree.“It’samagnoliatree,”Kirasaid.“HappyMother’sDay,”Davidsaid.
AlthoughIdon’thavemymotheranylonger,Ihavehertree.Whenthemagnoliablooms,weadmireitsbeautyanduseitasachancetotalkaboutmymotherandherloveforflowers.Thesemomentshelpkeepherspiritverymuchalive.I’malwaysremindedtoappreciatethesmallthingsthatmakelifesobeautiful.
48.Theauthor’spurposeinwritingthispassageisto .
A.expresshersorrowforhermother’sdeath
B.showtheinfluenceofhermotheronher
C.showherdeeploveforherlatemother
D.shareherhappychildhoodexperienceswithus
答案:C作者意图题。作者以木兰树引出话题,细述生活中妈妈对木兰树的热爱,以此来表达对妈妈的怀念。
49.Whichofthefollowingwordscanbestdescribetheauthor’shusbandDavid?
A.Thoughtful.B.Generous.
C.Humorous.D.Romantic.
答案:A推理判断题。根据第五、六段内容可知,母亲节那天作者的丈夫为她准备了木兰树,以此来表达对已经去世的母亲的爱,因此他考虑得很周到,他也很体贴。
50.Theunderlinedpart“herspirit”inthelastparagraphreferstothefactthattheauthor’smother .
A.wasalwaysfullofappreciationoflife
B.lovedmagnoliatreesverymuch
C.lovedherchildrenverymuch
D.wasdeterminedandwarmhearted
答案:A推理判断题。根据最后一段中最后一句“I’malwaysremindedtoappreciatethesmallthingsthatmakelifesobeautiful”可知,作者的母亲对生活充满感激,善于从小事中寻求乐趣,这也正是她的精神所在。
51.WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?
A.Magnoliatreesproducepinkandwhiteflowersinearlyspring.
B.Theauthorunderstoodhermom’spleasureinthebloomingatfirst.
C.Theauthormissedhermomverymuchafterherdeath.
D.Themagnoliatreeispartoftheauthor’slifenow.
答案:B细节理解题。根据第三段首句“Backthen,Ididn’tfindthebloomingofatreetobeaneventworthyofcelebration.”可知,作者刚开始并不理解妈妈对木兰花的热爱,认为也没有必要庆贺。
E
There’smoretoanapplethanitsgreattaste.Anappleprovidesmanyhealthbenefits.
Researchshowsapplescontainantioxidants(抗氧化剂)thatlowertheriskofheartdiseaseandcancer.
ResearchersfromCornellUniversityinNewYorkfoundthateatingjust100gramsofapplesgivesyouantioxidantsequaltotaking1,500mgofvitaminC.Studiesalsoshowantioxidantsinappleshelpreducetheriskofsomediseases.Inaddition,apples,containpectin(果胶),whichhelpstolowercholesterol(胆固醇).
Freshappleshavetraditionallybeengiventotreatconstipation(akindofdisease)becausetheyhelpdigestionwhilecookedapplesbringrelieftopeoplewithdiseasesintheirstomachs.Inaddition,applescanhelppeoplewithagingissuesbypromotinghairgrowth.And,becauseapplesactlikeanaturaltoothbrush,eatingthemfreshwillhelpcleanyourteeth.
Manypeopleliketoeatapplesbecausetheycanhelpwithweightloss.Applesarelowincaloriesandfatbuthighinfiber,whichgivesyouthatsatiatedfeeling.
Theyevenhelpreducestress.Universitystudieshaveshownthatstudentswhoeatapplesoftenhavefewerheadaches,coldsandstress?relatedillnesses.Otherstudieshaveshownthatapples,andespeciallytheirskins,containalotofcancer-fightingnutrients—sobesuretoeatthewholething.
Wheredidthisnutritiousfruitcomefrom?SomeresearchersthinkearlyapplescamefromKazakhstanwherewildappletreesstillgrowinlargeforests.OtherpossibilitiesarethemountainsinsouthwestAsiaandalsonorthernEurope.Evidenceshowsthatpeoplehavebeenenjoyingapplessinceatleast6,500BC.Today7,500differentkindsofapplesgrowthroughouttheworld.
Thenexttimeyoubiteintoanapple,rememberapplesaremorethanjustmouthwatering.Theyalsokeepyouhealthy.Soeatanapple—ormore—adayandkeepthedoctoraway!
52.Itcanbeinferredthattocontrolcholesterol,weshouldeatfruitrichin.
A.pectinB.vitaminCC.antioxidantsD.vitaminA
答案:A推理判断题。根据第三段第二句“...applescontainpectin,whichhelpstolowercholesterol”可推断。
53.Accordingtothepassage,whichofthefollowingdiseasesareapplesNOThelpfulwith?
A.Cancer.B.Headaches.C.Constipation.D.Toothaches.
答案:D细节理解题。根据第二段中“...lowertheriskofheartdiseaseandcancer,”第四段的“Freshappleshavetraditionallybeengiventotreatconstipation...”和第六段第二句“...studentswhoeatapplesoftenhavefewerheadaches”可知,苹果对A、B、C三项均有治疗作用,而对D项没有作用。
54.Theunderlinedword“satiated”inParagraph5canbereplacedby“”.
A.fullB.strongC.richD.heavy
答案:A词义猜测题。根据前句中“...theycanhelpwithweightloss”和本句中“...highinfiber”可推断,吃苹果能让人们有饱的感觉。
55.Theauthorofthepassagemainlywantstotellus.
A.howtoeatapples
B.aboutthehistoryofapples
C.benefitsofeatingapples
D.howtoremainhealthy
答案:C作者意图题。本文介绍了苹果的各种作用,作者旨在强调苹果对人体健康的益处。
Ⅳ.书面表达(满分25分)
现在的父母都望子成龙,他们要求自己的子女除上学外,还要学习许多其他的东西,加重了儿童的身心负担。请根据下图所描述的情景,写一篇短文,对这一现象作一分析并说说你的看法和态度。
词数:100~120。
参考词汇:围棋chess,书法calligraphy。
答案:Onepossibleversion:
Nowadays,thesocietyisdevelopingfastandmanyparentsacrossChinawanttheirchildrentocopewiththisrapidchangeandbewellpreparedfortheirfuture.Besidestheirregularstudiesinshcools,theirparentswantthemtoattendallkindsofotherclassessuchaspianoclass,danceclass,artclass,calligraphyclassandchessclass,layingaheavyburdenontheirshoulders.Asaresult,thechildrenalmosthavenotimetoplay.
Idon’tthinkthisisright.Ibelieveparentsshouldlettheirchildrendeveloptheirtalentbytheirownchoicesandinterestsandgivethemenoughtimeandspacetolearnwhattheywantto.So,thechildrencanhaveahappyandenjoyablelife.
作为杰出的教学工作者,能够保证教课的顺利开展,作为高中教师就要早早地准备好适合的教案课件。教案可以让学生能够听懂教师所讲的内容,使高中教师有一个简单易懂的教学思路。你知道如何去写好一份优秀的高中教案呢?以下是小编为大家精心整理的“高中数学必修1全册教案(北师大)”,仅供参考,欢迎大家阅读。
课题:§1.1集合文章来源:http://m.jab88.com/j/44798.html
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