| Table of contents Relime vol.24 n.1 Ciudad de México Mar. 2021 Editorial | | | | · Notes about the publication and insertion of postgraduates in educational Mathematics Cantoral, Ricardo
| | | Articles | | | | · Relational thinking in the schooling of order of operations and early algebra in elementary school Escobar Durán, Uriel; Tirado Segura, Felipe
| | | | · Analysis of the critical attitude of university social sciences students toward the use of computing software Pestano, Celina; González, Concepción; Gil, Mª. Candelaria
| | | | · Knowledge construction on the teaching of mathematics in students for mathematics teachers through videos Guerrero Contreras, Oscar
| | | | · A teaching experiment in continuing education structured by the MTSK model Montes, Miguel; Pascual, Mª. Isabel; Climent, Nuria
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