Nogueira, Lígia Gonçalves, Teresa Fernández Blanco, and Cláudia Maia-Lima. 2025. “Design and Validation of an Instrument to Analyse Spatial Thinking in Early Childhood Education”. Advances of Research in Mathematics Education, no. 27 (May): 87-105. https://doi.org/10.35763/aiem27.5937.