Podaeva, N. G., Podaev, M. V., y Agafonov, P. A. (2021). Development of the activity of gifted schoolchildren in mastering geometric con-cepts in figurative structures. PropĆ³sitos Y Representaciones, 9(SPE3), e1126. https://doi.org/10.20511/pyr2021.v9nSPE3.1126