Students in this unit mainly learn some simple knowledge of statistical charts, initially experience the process of data collection, sorting, description and analysis, learn to collect and sort out data in simple ways, master the recording method of statistical data, and ask and answer simple questions according to the data of statistical charts, so that students can understand the significance and function of statistics, initially understand the basic thinking methods of statistics, understand the role and significance of statistics, gradually form statistical concepts, and then develop an attitude of respecting facts and speaking with data.