### Abstract

This study compares American and Korean curriculum standards, textbooks, and geometry items to help explain the consistent differences that have been found between the achievement levels of U.S. and Korean students in the Program for International Student Assessment (PISA) mathematics. Since PISA measures the mathematical proficiency of 15-year-old students, this study focuses primarily on 8th-grade curriculum standards and textbooks. The findings provide valuable information for curriculum designers and textbook editors to help improve the quality of geometry curricula and textbooks. Teachers can also use these findings to assess the proficiency levels of items in the textbooks they use, so that they can develop lesson plans appropriate to the ability of their students and select relevant problems for their classes.

### License

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Research Article

EURASIA J Math Sci Tech Ed, 2013, Volume 9, Issue 4, 379-391

https://doi.org/10.12973/eurasia.2013.947a

Publication date: 14 Dec 2013

Article Views: 2661

Article Downloads: 1416

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