Middle School Teachers' Interpretations and Use of Geometric Curriculum Materials: Focused on the Three Aspects Analysis by Nayoung Ku, Kyeong-Hwa Lee

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Three Perspectives on Diagrams as Signs Contributing to Learning Mathematics by Jeong-Won Noh, Kyeong-Hwa Lee

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A Case Study on Learning Proofs of the Pythagorean Theorem through Diagramming: Based on the Châteletean Perspective by Jeong-Won Noh, Kyeong-Hwa Lee, Sung-Jae Moon

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The Mutual Involvement of Gesture and Diagramming in the Process of Mathematical Meaning-Making: Case of Statistical Thinking through Diagrammatic Reasoning by Sung-Jae Moon, Jeong-Won Noh, Kyeong-Hwa Lee

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A Study on the Application of the 'Key Concepts' and 'Generalized Knowledge' for Mathematics Competency Education by Kyeong-Hwa Lee, Eunjung Lee, Minsun Park, Mimi Park

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Supporting Students' Argumentation Structure Construction using Indeterminacy of Diagram by Kyeong-Hwa Lee, Jeong-Won Noh, Sung-Jae Moon

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Effect of Kami Guibi-tang (KGT) in elderly subjects with insomnia: a study protocol from a single center, randomized, double-blind, placebo-controlled trial by Kyeong-Hwa Lee, Han-Gyul Lee, Seungwon Kwon, Seong-Uk Park, Woo-Sang Jung, Sang-Kwan Moon, Jung-Mi Park, Chang-Nam Ko, Seung-Yeon Cho

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