一年级数学上册第3单元1-5的认识和加减法比大小练习课件新人教版

1～5的认识、比大小练习第三单元：1～5的认识和加减法它们各自代表着我们学习的1～5各数，根据它们各自提供的信息，猜猜它们各是几？一、回忆旧知，引入练习一、回忆旧知，引入练习说：我和它们比，我最小。说：我和它们比，我最大。说：我站在这一组数的最中间。说：我比长颈鹿小，比小猴大。说：我比长颈鹿大，但比小蜗牛小。一、回忆旧知，引入练习小猴是11<2

1<3

1<4

1<5小蜗牛是5，5>1

5>2

5>3

5>4一、回忆旧知，引入练习长颈鹿是31<2<3<4<5

或5>4>3>2>1一、回忆旧知，引入练习小蝴蝶是21<2<3小狮子是45>4>3一、回忆旧知，引入练习12345请按照从小到大的顺序写一写1～5各数。二、练习巩固，深化理解2.有几头？1.看数涂色你还想数什么？二、练习巩固，深化理解

用自己的方式表示出1、2、3、4、5。3.按1～5的顺序连线二、练习巩固，深化理解４.数一数，比一比322>111<2255>22<5二、练习巩固，深化理解５.涂一涂，比一比5>43<4考一考你的同桌吧！()和()二、练习巩固，深化理解６.填一填2445541331二、练习巩固，深化理解７.下一个该涂什么颜色？涂一涂，数一数44下一个该涂黄色。二、练习巩固，深化理解不一定对，要看篮子里有没有桃子，再进行判断。这节课你有哪些收获呢？三、全课总结，畅谈收获团Tiffany，a16­year­oldgirl，wasveryshy.LastSeptember，herbestfriend，Sophie，movedabroadwithherfamilybecauseshehadtocontinueherstudiesinAmerica.Sheevensaidshewouldnotcomebackforatleastafewyears.1“IwasreallysadthemomentIheardthebadnewsandIdidn'tknowwhattodo，”Tiffanyrecalled.“Ishutmyselfinmyroomforawholeweek.ItwasthenthatmyaunttookmetoasportscluboneSaturdayandIsawsomanyyoungpeopleplayingdifferentkindsofsportsthere.Isignedupforabeginner'scourseinvolleyballandsincethenIhavebeenplayingthissport.NowIpracticetwiceaweekthere.ItiswonderfulplayingsportsinthisclubandIhavemadelotsoffriendsaswell.2”Themostbasicaimofplayingsportsisthatyoucanimproveyourhealthevenifyouarenotverygoodatsports.Besides，youcangettoknowacircleofpeopleatyouragewhileplayingsports.3Sinceshejoinedthesportsclub，shehasopenedupherselfandnowshehasbecomeveryactiveandenjoysmeetingandtalkingwithothers.1．It'spoliteforgirlstokisseachotheronthesideoftheface.4．It'snobigdeal.Formostpeople，thatisoneofthereasonswhytheyjoinasportsclub.4Youdon'thavetositdownandtalktostrangers.Yougoinforsportsanditiseasiertounderstandyourpartnersonthesameteam.NowTiffanyisquitepopularwithherfriendsandshehasalsobecomemoreconfident.团圆圆一家在台湾可受欢迎了。每天，小朋友们排着长队，等着跟它们合影留念。从“排着长队”体