高中数学第2章数列2.2.2第二课时等差数列前n项和的综合应用省公开课一等奖新名师优质课获奖PPT课.pptx

阶段一,阶段二,阶段三,学业分层测评,1/45,2/45,3/45,4/45,负数,小,正数,大,小,5/45,6/45,7/45,8/45,9/45,10/45,由数列前,n,项和,S,n,求,a,n,11/45,12/45,13/45,14/45,15/45,16/45,XXX,等差数列前,n,项和性质应用,17/45,18/45,19/45,20/45,21/45,22/45,23/45,24/45,25/45,等差数列前,n,项和,S,n,函数特征,26/45,27/45,28/45,29/45,30/45,31/45,32/45,33/45,34/45,35/45,36/45,37/45,38/45,39/45,40/45,41/45,42/45,43/45,44/45,45/45,