TY - JOUR AU - Ayala-Altamirano, Cristina AU - Molina, Marta PY - 2021 SN - 0013-1954 UR - http://hdl.handle.net/10366/155026 AB - In the context of early algebra research and as part of a classroom teaching experiment (CTE), we investigated fourth grade (9- to 10-year-old) students’ justifications of how they performed tasks involving the functional relationship y = 2x. We... LA - eng KW - Early algebra KW - Justificación KW - Generalización KW - Sistema semiótico KW - Pensamiento funcional TI - Fourth-graders’ justifications in early algebra tasks involving a functional relationship DO - 10.1007/s10649-021-10036-1 T2 - Educational Studies in Mathematics VL - 107 M2 - 359 ER -