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Reasoning about relationships between quantities to reorganize inverse function meanings: The case of Arya
The Journal of Mathematical Behavior ( IF 1.0 ) Pub Date : 2020-03-01 , DOI: 10.1016/j.jmathb.2019.100741
Teo Paoletti

Abstract Researchers have argued high school students, college students, pre-service teachers, and in-service teachers do not construct productive inverse function meanings. In this report, I first summarize the literature examining students’ and teachers’ inverse function meanings. I then provide my theoretical perspective, including my use of the terms understanding and meaning and my operationalization of productive inverse function meanings. I describe a conceptual analysis of ways students may reorganize their limited inverse function meanings into productive meanings via reasoning about relationships between covarying quantities. I then present one pre-service teacher’s activity in a semester long teaching experiment to characterize how her quantitative, covariational, and bidirectional reasoning supported her in reorganizing her limited inverse function meanings into more productive meanings. I describe how this reorganization required her to reconstruct her meanings for various related mathematical ideas. I conclude with research and pedagogical implications stemming from this work and directions for future research.

中文翻译:

推理量之间的关系以重组反函数意义:Arya 的案例

摘要 研究人员认为,高中生、大学生、职前教师和在职教师并没有构建生产性反函数意义。在这份报告中,我首先总结了研究学生和教师的反函数含义的文献。然后我提供了我的理论观点,包括我对术语理解和意义的使用以及我对生产反函数意义的操作化。我描述了一个概念分析,学生可以通过推理协变量之间的关系,将他们有限的反函数意义重组为生产意义。然后,我展示了一位职前教师在一个学期的教学实验中的活动,以描述她的定量、协变、双向推理支持她将有限的反函数意义重组为更富有成效的意义。我描述了这种重组如何要求她重建各种相关数学思想的含义。我总结了这项工作的研究和教学意义以及未来研究的方向。
更新日期:2020-03-01
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