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  7. Volume 2 Issue 5, 2026
Article|OPEN ACCESS

三角形与梯形面积计算中“÷ 2”错误的类型、成因与对策研究

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陈泓丽

重庆三峡科技大学

Volume
Volume 2 Issue 5, 2026
Link
/journals/5/articles/303
DOI
10.65285/JYLLYJ.V2I5.001
Copyright
Published by NSP.

Abstract

三角形和梯形面积计算中“÷2”的遗忘是五年级数学教学中的常见问题。本文基于对 58 名学生作业的系统分析与课堂观察,将“÷2”的错误归纳为遗漏型、跳步型、混淆型和空洞型四种典型类型,并从操作与符号表达的断层、前摄抑制、练习孤立及检查缺失四个维度进行归因分析。在此基础上,提出建立操作锚点、设计对比变式、培养三步自问习惯、利用错题反例等教学干预策略,以期为一线教师解决此类问题提供参考。

Keywords

  • 三角形面积;梯形面积;典型错误;归因分析;教学对策

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References

  • [1]中华人民共和国教育部.义务教育数学课程标准(2022年版)[S].北京:北京师范大学出版社,2022.
  • [2]Skemp R R. Relational understanding and instrumental understanding[J]. Mathematics Teaching, 1976, 77: 20-26.
  • [3]奥苏伯尔.教育心理学:认知观点[M].佘星南,宋钧,译.北京:人民教育出版社,1994.
  • [4]Flavell J H. Metacognition and cognitive monitoring[J]. American Psychologist, 1979, 34(10): 906-911.
  • [5]郑毓信.数学教育哲学[M].成都:四川教育出版社,2001.
  • [6]曹培英.小学数学教学改革探析[M].北京:人民教育出版社,2015.
教育理论研究
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Key Dates

  • Published:2026-09-11 16:16:13

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