@inproceedings{confrey_maloney_nguyen_mojica_myers_2009, title={Equipartitioning/splitting as a foundation of rational number reasoning using learning trajectories}, volume={2}, booktitle={Pme 33: proceedings of the 33rd conference of the international group for the psychology of mathematics education, vol 2}, author={Confrey, J. and Maloney, A. and Nguyen, K. and Mojica, G. and Myers, M.}, year={2009}, pages={345–352} }