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教学内容苏科版九年级数学上册第三章“平均数”.教材简解在小学里,学生已对平均数有了初步认识.本节是九(上)内容,主要学习平均数等概念,在不同情境中会求一组数据的算术平均数,能运用平均数解决一些实际问题,进一步增强学生的统计意识和数学应用能力.并能利用平均数分析数据的集中趋势,为学习九(下)“概率与统计的简单应用”作准备.目标预设1.理解算术平均数的意义,会求一组数据的算术平均数.2.能运用“平均数”解决一些实际问题,进一步增强统计意识和数学应用能力.
Teaching content Suke version ninth grade mathematics on the third chapter “average ” textbook in primary school, students have a preliminary understanding of the average.This section is nine (on) content, the main learning averages Concept, in different situations will seek an arithmetic average of a set of data, the average can be used to solve some practical problems, to further enhance students’ awareness of statistics and math application ability, and can use the average to analyze the trend of data concentration, (Next) “Probability and Statistics Simple Application ” Target Preset 1. Understand the meaning of the arithmetic mean, will seek an arithmetic average of a set of data .2. Can use the “average” to solve some Practical problems, to further enhance the statistical awareness and mathematical application capabilities.