论文部分内容阅读
1 教材分析统计是一个包括数据的收集、整理、描述和分析的完整过程.北师大课标教材对该领域内容的设置就较好地遵循了这条主线.七年级的教材初步涉及数据的收集、整理、描述(画统计图表)等方面的内容.数据的分析是统计活动的核心,教材采用循序渐进、循环上升的方式进行处理,本章介绍表示数据集中趋势的三个特征量:平均数、中位数和众数,下学期学习极差、方差和标准差等分析数据离散程度的统计量.这样安排既符合统计的特点,又符合学生的认知规律.在本章的学习中,学生将会经历加权平均数、中位数、
1 textbook analysis and statistics is a complete collection of data, collation, description and analysis of the process of the Beijing Normal University curriculum standard textbook content in this area set to better follow the main line.Seventh grade textbooks initially involved in the data (Statistics), etc. The analysis of the data is the core of the statistical activity, and the teaching materials are processed in a gradual and cyclical manner. This chapter introduces three characteristic quantities that represent the trends in the data center: the average, Median and mode, the next semester learning very poor, variance and standard deviation analysis of data such as the degree of dispersion of statistics.This arrangement is consistent with the statistical characteristics, but also in line with the cognitive rules of students in this chapter, students will learn Will experience a weighted average, median,