Abstract
The Individualization of knowledge representation requires a knowledge base in which
teachers can organize contents according to their personal needs. The objective in teachers
education is to combine authoring activities with the embedding of existing contents.
Student teachers have different mathematical and pedagogical experiences in mathematics
education. These experiences determine their focus of interest and their authoring activities
in the knowledge management system. They develop for example lesson plans in
geometry embedded in the pedagogical and mathematical knowledge in the system.
Individualized knowledge representation is a constructivistic approach to build up
knowledge according to the progress in teachers education.