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Understanding the meaning of the equal sign (=) : a qualitative case study of grade 8 students' assigned meanings of the equal sign and how these assigned meanings affect their performance in solving equations

机译:了解等号(=)的含义:8年级学生对等号的指定含义的定性案例研究,以及这些指定的含义如何影响他们在求解方程式时的表现

摘要

Many research about students` understanding of the equal sign record that most students view the equal symbol as a signal to carry out a computation instead of a symbol expressing mathematical equivalence. The purpose of this study was to find out the meanings Zambian Grade 8 students assign to the equal sign and how their assigned meanings of the equal sign affect their performance in solving equations. A test and individual interviews were used to collect data and the assigned meanings were compared across students as they used the equal sign in solving equations with the aim of correlating between understanding the equal sign as a symbol representing equivalence and success in solving equations. It was found that students who demonstrated an ability to recognize a relational meaning for the equal sign scored higher in solving equations. However, it was also found that some students who defined or articulated a relational meaning of the equal sign were not able to demonstrate an understanding of an appropriate use of the symbol.
机译:关于学生对等号记录的理解的许多研究表明,大多数学生将等号看作是进行计算的信号,而不是表示数学等价的标志。这项研究的目的是找出赞比亚8年级学生分配给等号的意义,以及他们分配给等号的意义如何影响他们求解方程的能力。测试和个人访谈用于收集数据,并在学生中比较了分配的含义,因为他们在求解方程式时使用了等号,目的是使理解等号作为表示等价的符号与解决方程式的成功之间存在关联。结果发现,那些表现出识别同等意义的关系能力的学生在求解方程式中的得分更高。但是,还发现一些定义或表达了等号的关系含义的学生无法证明对该符号的适当用法的理解。

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    Mbewe Rose;

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  • 年度 2014
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  • 原文格式 PDF
  • 正文语种 eng
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