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1、精品教案设计资料2013 四年级上册数学第三单元导学案（西师版）鍔犳硶杩愮畻寰 ?绗?6锝?48椤典緥 1銆佷緥 2 璇炬椂 缂栧啓 鏉庤?佸笀瀹牳 浣跨敤鏁欏笀浣跨敤鏃堕棿骞?鏈?鏃?鏄熸湡銆? 1 锛庝娇瀛敓鐞嗚 鍜屾帉鎻姞娉曚氦鎹緥鍜岀粨鍚堝緥锛屾噦寰楃敤瀛楁瘝琛鐨勬剰涔夈?銆? 2 锛庨?氳繃缁忓巻瀵瑰姞娉曡繍绠楀畾寰嬬殑鎺鑳藉姏銆 ?銆? 3 锛庡湪瀛敓瀛範鍔犳硶杩愮畻瀹氬緥鐨勮繃绋嬩腑锛屽煿? 閲嶏紝闅剧偣銆?鐞嗚 鍜屾帉鎻姞娉曚氦鎹緥鍜岀粨鍚堝緥銆?鏁欐硶瀛硶 瀹炶返鎺鍚堜綔瀛範? 瀵?妗?瀛?妗?銆?涓?銆佹帰绌跺姞娉曚氦鎹緥銆?銆?1 锛湅鍚? ?銆?銆?2瑰悧锛熶负浠 ?涔
2、堬紵堢畻寰楄繖涔堝揩?銆?銆?3掔撼銆 ?銆?銆?鏁欏笀锛氬悓瀛滑鐪熶細瑙傚療銆佹瘮杈冦?傝皝鑳界敤涓?銆?銆?浜屻 ?佹帰绌跺姞娉曠粨鍚堝緥銆?銆?1?銆?銆?2. ?銆?銆?3 锛庡紩瀵煎綊绾炽?幇浜嗕粈涔堬紵銆?銆?瀛敓锛氱瓑鍙疯繛鎺?銆?锛堟澘涔級 89 锛?6 锛?04锛?9锛嬶紙 96 锛?04锛夈? ?精品教案设计资料銆?銆?锛坅锛媌锛夛紜c 锛漚锛嬶紙 b 锛媍 锛夈? ?銆?銆?鏁欏笀锛氬悓瀛滑璧风殑鍚嶅瓧閮藉緢濂斤紝鎴戜滑灏辨寜绾畾曠粨鍚堝緥锛岋紙a 锛媌锛夛紜 c 锛漚锛嬶紙b 锛媍锛夈? ?銆?銆?銆?銆?銆?銆?147 椤碉紝璇惧爞缁冧範绗 ?棰樸 ?傚?銆?銆?2.
3、绗?8 椤碉紝璇惧爞缁冧範绗?棰樸? ?銆?銆?锛?銆?銆?锛?畬鎴愩? ?銆?銆?锛?锛夐泦浣撴牎瀵广?銆?銆?锛?锛夐棶锛 ?36锛?9锛?4涓?89锛嬶紙 136锛?4銆?銆?3锛庣粌涔犱節绗 ?銆?銆?鍥涖?佸叏璇惧皬缁?煡閬撲簡浠 ?涔堬紵绠楃殑涓瀹氬緥銆 ?銆?銆?锛堟澘涔細鍔犳硶杩愮畻寰嬶級瀹冧滑鍦?鏉夸功璁捐?鍔犳硶杩愮畻寰 ? 89 锛?6 锛?04锛?9锛嬶紙 96 锛?04 锛?浜崲寰嬶紝 a 锛媌=b+a銆?锛坅锛媌锛夛紜 c 锛漚锛嬶紙 b 锛媍 锛夈? ? 瀛敓娲诲姩锛 ?瀛敓 1彉浜嗭紝浣嗘槸鎬荤殑閲嶉噺娌湁鍙樸?2薄鑰2?2 锛?525锛?2500锛?00300
4、锛?0030锛?020锛?01200锛?50650锛?200杩?璞?佸笀鐨勫濂栵紝瀛敓瑙傚療锛屽悓妗屼氦娴併?銆? 3熷湪鍏彮浜祦銆 ?銆?銆?瀛敓1?閬撶殑缁撴灉精品教案设计资料?銆?銆?瀛敓2 锛氬疄闄呬笂 12锛?5涓?5锛?2閮芥槸姹 ?2涓?5殑銆?銆?銆?瀛敓3 锛氭垜鍙戠幇宸竟鍜屽彸杈瑰苟鎺掔殑涓釜绠楀紡?銆?銆?4. 18+25=锛?锛?18 560+375=375+ 锛?锛?锛?锛?107=107+96 87+锛?锛?126+锛?锛? 鐧介闀囦腑蹇冩牎鍥涘勾绾 笂鍐?瀵煎?绗?0椤典緥 3銆佷緥 4 璇炬椂 缂栧啓 鏉庤?佸笀瀹牳 浣跨敤鏁欏笀浣跨敤鏃堕棿骞?鏈?鏃?鏄熸湡1
5、 锛庝娇瀛敓杩涗竴姝悊瑙姞? ?2鍑忔硶鐨勮繍绠楁?川銆?3锛鍐抽棶棰樼殑鑳藉姏銆 ?4绠楃殑鐏垫椿鎬 川鐨勬剰璇嗐? 閲嶏紝闅剧偣鏁欐硶瀛硶瀹炶返鎺鍚堜綔瀛範? 瀵?妗?瀛?妗?銆?銆?1 锛庢暀甯堬細鏄?銆?銆?2?銆?銆?3銆?銆?浜屻 ?佽鍐抽棶棰 ?銆?銆?1 锛庢暀瀛緥 3 銆?銆?銆?锛?锛夋暀甯堬細鑳 ?佸笀?13鍏冿紝浜岀彮鎹愪簡 96鍏冿紝涓夌彮鎹愪簡87鍏冦? ?銆?銆?2 锛庢暀瀛緥 4銆?銆?銆?锛?銆?銆?鏁欏笀精品教案设计资料?銆?銆?锛?銆?銆?锛?汇? ? ?銆?銆?瀛敓锛?00锛?08锛?2锛?00锛嶏紙 10 锛?2 锛夈? ?銆?銆?锛?锛夌 137 锛
6、嶏紙37 锛?0 锛夛紝璇讳竴璇汇?鏇寸畝渚匡紝涓轰粈涔堬紵銆?鏁欏笀锛氳鍐抽棶棰樻椂锛屽彲浠敤涓?勫拰锛屾 ?庢牱绠?渚垮氨鎬庢牱绠椼?銆?銆?涓夈?佺伒娲昏繍鐢?銆?銆? 151 椤碉紝璇惧爞缁冧範绗 ?銆?銆?銆?2.绗?1椤碉紝璇惧爞缁冧範绗 ?棰樸? ?銆?銆?锛?绔嬬畝绠楋紝鍚屾椂涓変釜瀛敓鏉挎紨銆?銆?銆?锛?锛夐泦浣撹瘎璁茬畻娉曞苟璇存槑鐞嗙敱銆 ?銆?銆?353545 銆?銆?銆?銆?鍥涖?佸叏璇惧皬缁?銆?銆?鏁欏笀锛氶 ?氳繃瀛範锛屼綘鏈変粈涔堟敹鑾凤紵? ? 113 锛?6锛?7 113锛?6锛?7 =209+87 =113+87+96 =200+96 =296 =29
7、6 113 锛?6 锛?7锛?6锛嬶紙 113 锛?7 锛? 銆? 1?銆?銆?锛?锛?5 锛?55锛濓紜 45 銆?銆?銆?锛?锛?6锛?30锛?70锛?6锛嬶紙 130 锛嬶級銆 ?銆?銆?锛?锛夛紙 257 锛媍锛夛紜 d锛?57锛嬶紙 +锛夈? ?锛?锛?15锛媋锛 ?85 锛?15锛嬶紜 a銆?2精品教案设计资料轰緥 3 瀛敓 1锛氾紙灞曠绠楀紡113锛?6锛?7?3 锛?6锛?09?09锛?7锛?96锛堝厓锛夈?銆?銆?瀛敓2 锛氾紙灞曠绠楀紡 113 锛?7 锛?6?13锛?7锛?00200 锛?6锛?96锛堝厓锛夈?銆?銆?瀛敓3 锛?13锛?6锛?7 锛?6 锛嬶紙 113锛
8、?7锛夈?傗?3? 瀛敓 11 鍛崠浜 ?08濂楀悗杩樺墿澶氬皯濂楋細200锛?08锛?2?鍛崠浜 ?2濂楋紝杩樺墿澶氬皯濂楋細92锛?2锛?0?銆?銆?瀛敓21 銆?鍛叡鍗栦簡澶氬皯濂楋細108 锛?2 锛?50200 锛?50锛?0? 嬮棿鏈変粈涔堝叧绯伙紵銆?銆?瀛敓1 锛氶兘鏈 ?200锛?08锛?2 涓変釜鏁帮紝缁撴灉涔熺浉绛夈?銆?銆?瀛敓212108 鍜?2鍔犱笂浜嗘嫭鍙凤紝鍑忓彿鍙樻垚浜嗗姞鍙枫? 鐧介闀囦腑蹇冩牎鍥涘勾绾 笂鍐?狅紙鍑忥級鎺繎鏁寸櫨鐨勬暟绗?1 椤典緥 5 璇炬椂 缂栧啓 鏉庤?佸笀瀹牳 浣跨敤鏁欏笀浣跨敤鏃堕棿骞?鏈?鏃?鏄熸湡銆? 1 锛庝娇瀛敓鏇村鍦版帉
9、鎻姞娉曚氦鎹緥鍜岀粨鍚堝緥锛屾噦寰楃敤瀛楁瘝琛鐨勬剰涔夈?銆? 2紝鍩瑰吇鍏舵暟瀛氦娴佺殑鑳藉姏鍜屽悎浣滅殑鎰忚瘑銆? 閲嶏紝闅剧偣杩愮敤瀹氬緥銆佹?鐞嗚鍑忔硶鐨勮繍绠楁? 川銆?鏁欐硶瀛硶鍚堜綔瀛範娣卞寲缁冧範? 瀵?妗?瀛?妗?涓?銆佺珵璧涘紩鍏?銆?銆?1 锛庢暀甯堬細鑰佸精品教案设计资料?閬擄紝濂冲悓瀛畻鍙宠竟3?銆?銆?鏁欏笀锛氱湅鏉紝澶 偅涔堬紝宸竟 3867 锛?8銆?銆?銆?浜屻?佹暀瀛緥5 銆?銆?1?锛屽苟鍒楀嚭绠楀紡 867+98銆?銆?锛 ?67锛?8?8鏈変粈涔堢壒鐐癸紵銆?銆?瀛敓锛?8鎺繎 100 銆?銆?锛 ?浜哄皬缁勮繘琛岀爺绌躲?銆?瀛敓鐢墜鍔块 ?夋嫨绗?
10、缁勩? ?銆?銆?锛?锛夋暀甯堝己璋冿細杩欓噷涓轰粈涔?98 鐪嬫垚鍔 ?002?銆?銆?銆?锛?锛夋暀甯堢敤绾瑪寮鸿皟鈥滐紞2 鈥濄?傛暀甯堬細涓 ?涓?2 锛庡珐鍥虹粌涔狅細锛?锛?瀛敓璁畻 298锛?9锛?35锛?7銆?銆?銆?锛?锛夊皬缁勭粌涔狅細鎬庢牱鏈?绠?渚?锛?锛夊晢搴楄嫻鏋 ?56鍗冨厠锛屾瀛 ?35 鍗冨?65锛?85 浜猴紝缁樼敾缁勬湁120浜猴紝鑸炶箞缁 ?0 浜猴紝涓?鍏辨湁澶氬皯灏忔湅鍙嬪弬鍔犲叴瓒皬缁勶紵涓夈?佹嫇灞曠粌涔狅細 87锛?9 锛?6锛?3锛?4锛?1 175+143+125 342+172+128 485-170+15 354-90+46 640+2
11、33+60 742-42+158 ?櫨鐨勬暟867 锛?8 =867+100-2 =967-2 =965 锛堝厓锛 ? 瀛敓娲诲姩 1. 澶氬獟浣撳嚭绀猴細298 锛?932锛?00135锛?7147锛?00867锛?8496锛?002锛? 瀛敓娲诲姩 2 锛?銆?銆?绗?867 锛?8锛?67锛?00锛?67細 98 鎺繎 100867 锛?8 鐪嬫垚 867 锛?00精品教案设计资料绠楀嚭寰楁暟浜嗐?銆?銆?绗?867 锛?8锛?67锛?00锛?67锛?67锛?锛?65?8鐪嬫垚 100 锛屼絾鏄?00姣?8 澶氫簡 2 锛屾墍浠 ?67 锛?00浠悗瑕佺敤寰楁暟鍑 ?銆?绗 ?867 锛
12、?8 锛?67 锛?00-2锛?67-2锛?65 銆傝?棦鐒?8100 锛屽畠骞朵笉鑳界瓑浜 ?00锛屾墍浠儚绗 ?缁勯偅鏍峰啓鎴 ?67 锛?8锛?67锛?00? 鐧介闀囦腑蹇冩牎鍥涘勾绾 笂鍐?涔狅紙涓 ?锛 ?绗?5锝?6 璇炬椂 缂栧啓 鏉庤?佸笀瀹牳 浣跨敤鏁欏笀浣跨敤鏃堕棿骞?鏈?鏃?鏄熸湡1?2? 閲嶏紝闅剧偣殑璁畻鑳藉姏銆 ? 鏁欐硶瀛硶瀹炶返鎺鍚堜綔瀛範? 瀵?妗?瀛?妗? 涓?銆佸洖椤炬暣鐞?銆?銆?1 锛庡嚭绀烘暀绉戜功绗 ?5 椤典富棰樺浘锛 ?銆?銆?銆?瀹广? ?澶?銆?銆?瀛敓1 锛氫細鎶婂鏁扮洰鍖栨垚鈥滀竾鈥濅綔鍗曚綅鏉彛绠椼?銆?銆?瀛敓2暟鐨勫姞鍑忔硶璁畻銆
13、傗 ?精品教案设计资料浜嗐? ?銆?鏁扮殑鍙畻鏁村崈鏁扮浉鍔犲噺浼扮畻鈥曗?曗?滃洓鑸嶄簲鍏 ?濇敼鍐绠楀櫒璁畻澶氫綅鏁板姞鍑忔硶鍔犲噺娉曠殑鍏崇郴鍔犲噺娉曞悇閮垎涔川鍔犳硶浜崲寰嬨 ?佺粨鍚堝緥锛屽噺娉曟?峰悓瀛滑鏍规嵁鐭瘑缁撴瀯鍥句竴涓?涓句緥銆?銆?銆?銆?銆?浜屻 ?佸珐鍥烘嫇灞 ?銆?銆?1 锛庢暀绉戜功绗 ?51竴璇村鏁扮殑渚濇嵁锛?銆?銆?2 锛庢暀绉戜功绗 ?52 銆?棰樸? ?锛庢暀绉戜功绗 ?6椤电粌涔犲崄涓 ?绗 ?銆?銆?棰樸? ?銆?銆?涓夈?佸叏璇炬?荤粨鐐硅侀拡瀵规? 緝寮虹殑缁冧範锛屾湁鍒簬瀛敓杩涗竴姝珐鍥烘彁楂樼煡璇嗙殑鎺屾彙銆俔?澶氫綅鏁板姞鍑忔硶鐨勫彛绠?
14、澶氫綅鏁板姞鍑忔硶鐨勪及绠 ?鍔犲噺娉曠殑浜掗 ?嗗叧绯?换鎰忕粨鍚堜笌浜崲1 澶氫綅鏁板姞鍑忔硶鐨勫彛绠? 2 澶氫綅鏁板姞鍑忔硶鐨勪及绠? 3 鍔犲噺娉曠殑浜掗?嗗叧绯 ? 精品教案设计资料4璁畻姣旇禌鑴卞紡璁畻45 锛?8 锛?2 45锛嬶紙 88 锛?2锛?= = = 125+49+51 556+328+144 335+210+65 721-234-66 639-锛?9+254锛?623+99 371+302 654-201 鐧介闀囦腑蹇冩牎鍥涘勾绾 笂鍐?涔狅紙浜岋級璇炬椂 缂栧啓 鏉庤?佸笀瀹牳 浣跨敤鏁欏笀浣跨敤鏃堕棿 骞?鏈?鏃?鏄熸湡? 閲嶏紝闅剧偣? 鏁欐硶瀛硶瀹炶返鎺鍚堜
15、綔瀛範? 瀵?妗?瀛?妗? 涓?銆佹暀甯堣皥璇濆紩鍏細簺浠?涔堬紵锛堜竴锛夊绌猴細175438鈮堬紙 锛変竾 195438 鈮堬紙 锛変竾 174028鈮堬紙 锛変竾 999009鈮堬紙 锛変竾 5 340鈮?涓?185 340鈮?86涓? 980 532鈮?980涓?1 5482鈮?8 涓? 锛堜簩锛夊湪锛 ?锛夐噷娣讳笂鈥 ?鈥濇垨鈥溾増鈥 ?30600000锛?锛?060 涓?37涓囷紙 锛?71100 1957000000锛?锛?0浜?5000000000锛?锛?0浜?锛堜笁锛夐?夋嫨棰 ?1锛庝笌 10000锛夈? ?A 19999鍜?99 B 19000 鍜?0001 C 1000
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