Goniometry and trigonometry

Analytic geometry

Cabri and computers in mathematics teaching

Games in the teaching of mathematics

Pupils with special needs and mathematics

Assessment in mathematics

Problem posing in mathematics

Open and closed problems in the teaching of mathematics

Interactive whiteboard in the teaching of mathematics

Basic notions from mathematics education (e.g., concept creation process, parallel between phylogeny and ontogeny of knowledge) are applied to other mathematical topics. The teacher's skills in general without any relationship to a specific mathematical topic.