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Direct linkJaehong Shin; Soo Jin Lee – Investigations in Mathematics Learning, 2024
In the present study, we illuminate students' multiplicative reasoning in the context of their units-coordinating activity. Of particular interest is to investigate students' use of three levels of units as given material for problem-solving activity, which we regard as supporting a more advanced level of multiplicative reasoning. Among 13 middle…
Descriptors: Mathematics Instruction, Multiplication, Middle School Students, Mathematical Logic
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
