AMERICAN STUDENTS' UNDERSTANDING OF ALGEBRAIC EXPRESSIONS : FOCUSING ON THE CONVENTION OF INTERPRETING LITERAL SYMBOLS
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- FUJII Toshiakira
- Department of Education, Tokyo Gakugei University
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Description
Focusing on the convention that the same literal symbol in the same expression takes the same number, this paper aims to clarify American students' understanding of algebraic expressions through a written survey and clinical interview. In the interview, subjects who had inconsistent ideas on understanding literal symbols were carefully matched. To identify such students a written task was conducted beforehand. The methodology of this purposeful identification of subjects for interview is one of the characteristic features of this study. The interview revealed that American students have the misconception that the same literal symbol does not necessarily stand for the same number. This tendency is consistent with the data for Japanese students. This phenomenon in both countries is considered as a lack of understanding of the "definite aspect" which is one of the key aspects of the concept of variables.
Journal
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- Journal of Science Education in Japan
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Journal of Science Education in Japan 25 (3), 167-179, 2001
Japan Society for Science Education
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Details 詳細情報について
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- CRID
- 1390282680727906816
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- NII Article ID
- 110002704890
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- NII Book ID
- AN00036978
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- ISSN
- 21885338
- 03864553
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- NDL BIB ID
- 6003449
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed