人教新课标一年级数学下册,找规律,教学目标,1.通过观察、操作等活动能找出图形和数字的规律。2.激发同学们感受数学美、发现美的情感。3.培养同学们初步的观察、概括和推理能力,提高合作交流的意识。,2,3,4,5,6,2,3,4,-1,-1,-1,5,-1,6,-1,1,2,3,4,5,6,7,8,9,+1,+1,+1,+1,+1,+1,+1,2,4,6,8,10,12,14,+2,+2,+2,+2,+2,+2,11,9,7,5,3,1,-2,-2,-2,-2,-2,5,10,15,(1),3,9,12,15,20,25,6,找规律,(2),30,35,18,21,1,5,9,2,12,22,32,5,7,20,11,13,15,17,18,16,14,17,42,19,21,12,10,13,9,15,17,19,11,13,找规律,1,3,6,10,15,找规律,请设计一排或几排有规律的数。,思考题,谢谢!,