References
- Clark, R.C. & Mayer, R.E. (2008). e-Learning and the Science of Instruction. Pfeiffer.
- Clement, J. (1989). The concept of variation and misconceptions in cartesian graphing. Focus on Learning Problems in Mathematics, Vol. 11, 1-2.
- De Bock, D., Verschaffel, L. & Janssens, D. (1998). The predominance of the linear model in secondary school student's solutions of word problems involving length and area of similarplane figures. Educational Studies in Mathematics, Vol. 35(1).
- De Bock, D.; Van Dooren, W., Janssens, D. & Verschaffel, L. (2002). Improper use of linear reasoning: an in-depth study of the nature and the irresistability of secondary school students' errors. Educational Studies in Mathematics, Vol. 50(3).
- Glaser, B.G. & Strauss, A.L. (1998). Grounded Theory - Strategien qualitativer Forschung. Verlag Hans Huber.
- Hoffkamp, A. (2011). Entwicklung qualitativ-inhaltlicher Vorstellungen zu Konzepten der Analysis durch den Einsatz interaktiver Visualisierungen - Gestaltungsprinzipien und empirische Ergebnisse. PhD thesis.
- Hunting, R.P. (1997). Clinical Interview Methods in Mathematics Education Research and Practice. Journal of Mathematical Behavior, 16(2).
- Janvier, C. (1978). The interpretation of complex cartesian graphs representing situations - studies and teaching experiments. PhD thesis, University of Nottingham.
- Malle, G. (2000). Zwei Aspekte von Funktionen: Zuordnung und Kovariation. Mathematik lehren, 103.
- Nitsch, R. (2015). Conceptual Difficulties in the field of functional relationships. codi-test.de (2015-07-06).
- Schlöglhofer, F. (2000). Vom Foto-Graph zum Funktions-Graph. Mathematik lehren, 103.
- Vollrath, H.-J. (1989). Funktionales Denken. Journal für Mathematikdidaktik No. 10.
- Zazkis, R. & Hazzan, O. (1999). Interviewing in Mathematics Education Research. Choosing the Questions. Journal of Mathematical Behavior, 17(4).