Die Institut für Qualitätsentwicklung im Bildungswesen (IQB) erarbeitet in Zusammenarbeit mit der AG Greefrath Aufgaben für Vergleichsarbeiten im Fach Mathematik. Die Durchführung landesweiter Vergleichsarbeiten VerA 8 in allen Ländern der Bundesrepublik Deutschland ist Teil der Gesamtstrategie der Kultusministerkonferenz zum Bildungsmonitoring.
| Greefrath, Gilbert | Professorship of Mathematics Didactics with a focus on secondary schools (Prof. Greefrath) |
| Greefrath, Gilbert | Professorship of Mathematics Didactics with a focus on secondary schools (Prof. Greefrath) |
| Ay, Ilja | Professorship of Mathematics Didactics with a focus on secondary schools (Prof. Greefrath) |
| Brnic, Maxim | Professorship of Mathematics Didactics with a focus on secondary schools (Prof. Greefrath) |
| Hankeln, Corinna | Professorship of Mathematics Didactics with a focus on secondary schools (Prof. Greefrath) |
| Jedtke, Elena | Professorship of Mathematics Didactics with a focus on secondary schools (Prof. Greefrath) |
| Schürmann, Uwe | Professorship of Mathematics Didactics with a focus on secondary schools (Prof. Greefrath) |