Teaching and learning of knot theory in school mathematics

1. What is Knot Theory?---Why Is It in Mathematics?2. The Evolution of Mathematics Education---forwarding the research and practice of teaching knot theory in mathematics education---3. The Background of Developing Teaching Contents of Knot Theory 4. Education Practice in Elementary School 5. Education Practices in Junior High School 6. Education Practices in Senior High School 7. Education Practice at the University as Liberal Arts and Teacher Education-Index