how mathematics teachers learn to notice and learn to improve instructional practices that develop students' mathematical thinking in and from teaching;
how students develop their mathematical reasoning and modeling competency in classrooms, especially equipping with AI;
how a teacher and students interact for making more accessible to the core learning opportunities of mathematical and mathematical practices;
how these two explorations appear differently and similarly, and what we can learn in and from cross-cultural contexts;
how research supports these practices (e.g., developing professional development tools and programs).
Core Practice in Algebraic and Functional Relations (Cross-cultural study between US and Korea)
International Classroom Lexicon Project (Cross-cultural study across 10 countries)
Turkey and Korea Collaborative Study by Investigating Mathematical Modeling Competency
AI and Digital Literacy in K-12 Math with AI Digital Textbook Development