@article{Navarra_2018, title={The early algebra and the ArAl project}, volume={3}, url={https://www.edimast.it/index.php/edimast/article/view/56}, abstractNote={<p>The paper introduces the Early Algebra and the ‘ArAl Project, Arithmetic pathsways towards favouring pre-algebraic thinking’. Three workshops are presented, dedicated to three Teaching Units (Pitagora Editrice Bologna): Numbers pyramids, Numbers grids, Matematòca & other mathematical games.</p>}, number={3}, journal={EDiMaST: Experiences of Teaching with Mathematics, Sciences and Technology}, author={Navarra, Giancarlo}, year={2018}, month={Oct.}, pages={539–547} }