凸显统计本质 合理设计教学——谈《平均数》一课的简约有效设计

Highlight the Essence of Statistics and Design Teaching Rationally——On the Simple and Effective Design of the Lesson"Average"

理解平均数要从它的三个角度去理解,即算法理解平均数、概念理解平均数、统计理解平均数。所以在教学中,教师要更多地通过教学发展学生的数据分析观念,使学生在分析数据时会想到用平均数,愿意用平均数刻画数据。

Understanding the average must be understood from its three perspectives,namely,algorithm understanding average,concept understanding average,and statistical understanding average.Therefore,in teaching,teachers should develop students'data analysis concepts more through teaching,so that students will think of using averages when analyzing data,and are willing to use averages to describe data.