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片断:研究盆花、彩灯、彩旗中的规律(苏教版五年级上册《找规律》例1)师:请大家观察挂图(例1的插图)上面的盆花,你能发现什么?生:我发现盆花是按照蓝花、红花、蓝花、红花、蓝花、红花……的顺序排列。生:左起第1、3、5、7……盆是蓝花,第2、4、6……盆是红花。生:我知道2的倍数的都是红花,不是2的倍数的都是蓝花。师:同学们观察得真仔细,左起第15盆是什么颜色的花?
Piece: study the law of potted flowers, lanterns, colorful flags (Jiangsu Education Publishing House fifth grade volumes “find the law” in Example 1) Teacher: Please observe the wall charts above the potted flowers (example 1 illustrations), what can you find? Potted flowers were found in the order of blue flowers, safflower, blue flowers, safflower, blue flowers, safflower .... Health: the first 1,3,5,7 left ... pots are blue flowers, the first 2,4,6 ... pots are safflower. Health: I know that the multiple of 2 are safflower, not a multiple of 2 are blue flowers. Teacher: Students observe carefully, from the left 15th pot is what color of flowers?