This paper is a report of an empirical study on the senior middle school students' understanding about the concept of slope.

本文报道了针对中学生斜率概念理解的一项调查研究。

youdao

This paper is a report of an empirical study on the senior middle school students' understanding about the concept of slope.

本文报道了针对中学生斜率概念理解的一项调查研究。

youdao