Fig. 2From: Changing between representations of elementary functions: students’ competencies and differences with a specific perspective on school track and gender© 2015)Sample test item requiring a change between a situation and an equation. Adapted and translated from Nitsch, 2015, p. 160, Fig. 18 (adapted and translated by permission from Springer Nature Customer Service Centre GmbH: Springer, Diagnose von Lernschwierigkeiten im Bereich funktionaler Zusammenhänge by R. Nitsch,Back to article page