To support the analysis of the results of the Teacher Knowledge Survey (TKS), the OECD Secretariat conducted a survey on pathways into teaching and teachers’ professional development in participating countries. This survey was adapted from the 2021 OECD-INES-NESLI survey on pathways to become a teacher and the professional development of teachers. Countries completed the survey in March-April 2025, with reference to fully-qualified teachers at the lower secondary (ISCED 2) level in the school year 2023/24 (2024 for Southern Hemisphere countries).
The results of this survey are summarised in Table A B.1 to Table A B.6.