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1、單擊此處編輯母版標題樣式,單擊此處編輯母版文本樣式,第二級,第三級,第四級,第五級,*,數的順序 比較大小,人教新課標一年級數學下冊,教學目標,1.,初步掌握,100,以內數的順序。,2.,初步會比較,100,以內數的大小。,3.,初步結合具體事物，使同學們 感受,100,以內數的意義，會用,100,以內的數表示日常生活中的事物，并進行簡單的估計和交流。,1,13,4,15,6,18,10,按順序填寫。,2,4,6,8,10,11,13,15,17,19,22,28,33,37,44,46,55,64,66,73,77,82,88,91,99,按照數的順序，在空格里填數。,1,2,3,4,5,
2、6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,1,2,3,4,5,6,7,8,9,
3、10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,給十位是,3,的數涂上綠色。,1,2,3,4,5,6
4、,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,給個位是,3,的數涂上黃色。,1,2,
5、3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,給個位和十位數字相同的數
6、涂上粉色。,2,4,6,8,10,11,13,15,17,19,22,28,33,37,44,46,55,64,66,73,77,82,88,91,99,你還能從表里發(fā)現(xiàn)哪些有趣的排列？,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72
7、,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,第,4,行第,8,個數是多少,?,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69
8、,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,55,前面一個數是多少？,15,23,在百數圖表中找出下框里另外幾個數。,16,25,26,13,33,22,24,填空。,1,、比,49,大,1,的數是,(),。,2,、比,100,小,1,的數是,(),。,3,、,70,比,(),大,1,；,比,(),小,1,。,50,99,69,71,兒科病房從,1,號開始看病，現(xiàn)在看第,48,號病人，,前面可能看過了多少個病人？,公雞,母雞,公雞打鳴，母雞生蛋。,比一比,28,26,百位十位個位,百位十位個位,比一比,39,45,3 2,3 0,64,58,45,47,6,5,4,4,5,7,兩位數比大小，先比十位，,十位上的數一樣，再比個位，,個位上的數大的這個數就大,。,在 里填上“,”,或“,=”,。,23 33,93 94,57 53,99 100,69 68,40 40,=,49,37,40,51,42,請把這些小魚按照從小到大的順序排列起來。,紅金魚,48,條,花金魚,15,條,黑金魚,10,條,紅金魚比黑金魚多得多。,黑金魚比花金魚少一些。,本課總結,牢記,100,以內數的順序，會比較,100,以內數的大小。,
《數的順序比較大小》課件
