@article{santos_figueira-sampaio_carrijo_2017, title={Mapping Free Educational Software Intended for the Development of Numerical and Algebraic Reasoning}, volume={16}, DOI={10.26803/ijlter.16.11.3}, number={11}, publisher={Society for Research and Knowledge Management}, author={Santos and Figueira-Sampaio and Carrijo}, year={2017}, month={Nov} }