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Download full textHwang, Sunghwan; Yeo, Sheunghyun; Son, Taekwon – International Electronic Journal of Elementary Education, 2021
Developing textbooks of optimal quality is crucial for enriching the students' learning and understanding. This study examined fraction addition and subtraction problems in the U.S. and South Korean mathematics textbooks according to the types of denominators. In particular, we investigated Everyday Mathematics (EM) and South Korean mathematics…
Descriptors: Fractions, Addition, Subtraction, Textbook Content
