1. The power of Colombian mathematics teachers’ conceptions of social/institutional factors of teaching
2. Bauersfeld, H. 1988. “Interaction, construction and knowledge: Alternative perspectives for mathematics education. In Effective mathematics teaching”. Edited by: Cooney, T. and Grouws, D. 29–46. Reston, VA: National Council of Teachers of Mathematics and Lawrence Erlbaum Associates.
3. Bauersfeld, H. 1995.Structuring the structures.InConstructivism and Education, ed. L.P. Steffe and J. Gale, 137–158. Hillsdale, NJ: Lawrence Erlbaum Associates
4. Preschool Children's Knowledge of Addition and Subtraction