„The most common priorities for policy intervention reported by teachers in participating countries and economies are: 1) reducing class sizes (reported by 65% of teachers); 2) improving teacher salaries (64%); 3) offering high-quality professional development for teachers (55%) and 4) reducing teachers’ administration load (55%).“
OECD (Hrsg.), „TALIS 2018 Results. Volume I“ (2019), S. 82