Konkuk University

• Theory of Mathematics Education

• Mathematics Education Using History

• Mathematics and Field Competency for Teachers

• Set Theory

• Probability and Statistics Education

• Geometry for Secondary Mathematics Teachers

Jeonju National University of Education

• Theory of Mathematics Education

• Materials and Method in Teaching Mathematics

• Proabability and Statistics for Elementary School Teachers

• School Mathematics for Elementary School Teachers

• Seminar of Elementary School Mathematics Education

• Curriculum and Assessment of Elementary School Mathematics

• Teaching and Assessment of Mathematical Problem Solving

Cheongju National University of Education

• Elementary Mathematics Education

• Mathematics Education II

Gyeongin National University of Education

• Theory of Mathematics Education I

• Mathematical Thinking Education

Korea Advanced Institute of Science and Technology

• Differential Equation and Its Application (as a Teaching Assistant)

• Introduction to Linear Algebra (as a Teaching Assistant)

• Modern Algebra I (as a Teaching Assistant)

Korea University

• Calculus I (as a Teaching Assistant)

• Calculus II (as a Teaching Assistant)

Konkuk University

• History of Mathematics

• Educational Statistics

• Seminar of Probability and Statistics Education

Jeonju National University of Education

• Literature Research on Elementary Mathematics Education

• International Trend of Mathematics Education

• Lecture on Geometry Education for Elementary School

• Philosophy of Mathematics Education

• Theory of Elementary School Mathematics Curriculum

• Mathematical Modeling for Utilization of Artificial Intelligence

Busan National University of Education

• Developing Program for Experiental Education of Mathematics

Korea National University of Education

• Trend of Research on Mathematics Education II

• Mathematical Writing