Nogueira IC. Onto-semiotic analysis of instructional processes in mathematics, practices improvement and teacher professional development. R Est Inv Psico y Educ [Internet]. 2015 Nov. 10 [cited 2024 Nov. 2];(06):209-13. Available from: https://revistas.udc.gal/index.php/reipe/article/view/reipe.2015.0.06.582