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.