Hoogstscorende landen voor PÏSA-wiskunde ( Singapore, Korea, Japan, Vlaanderen, Nederland, Finland ....) passen minder binnenklasdifferentiatie
toe (zie bijlage)

Verklaring: What does the teacher not do when they are moving from group to group in a classroom, managing many disparate tasks? Perhaps they do not spend time at the front explaining concepts and conducting whole class discussions. And perhaps, with all of these different tasks taking place, the teachers need to spend more time on administering this activity and dealing with classroom manag