教学内容人教版九年制义务教育六年制小学《数学》第八册。教学目标1.感悟平均数的意义,建构平均数的概念;2.探究求平均数的多种方法,鼓励解决问题策略的多样化;3.感受平均数概念所蕴涵的丰富、深刻的统计与概率的背景,能针对数据分析结果作出简单推断和预测;4.体会平均数在现 Teaching content PEP nine-year compulsory education Six-year primary school mathematics eighth. Teaching Objectives 1. To comprehend the meanings of meanings and to construct the concept of averages; 2. To explore ways of averaging and to encourage the diversification of problem strategies; 3. To find out the rich and profound statistics implied by the mean concept Probability background, can make simple inference and forecast for the data analysis results; 4. The average number of experience in the present