References
Cai, J., & Lester Jr, F. K. (2005). Solution representations and pedagogical representations in Chinese and US classrooms. The Journal of Mathematical Behavior, 24(3-4), 221-237.
Siemon, D., Beswick, K., Brady, K., Clark, J., Faragher, R., & Warren, E. (2011). Teaching mathematics: Foundations to middle years. Oxford University Press.
Siemon, D., & Breed, M. (2006). Assessing multiplicative thinking using rich tasks. In Annual Conference of the Australian Association for Research in Education.