Tenecela Calderón ME. Bridges in mathematical problem‑solving between rural and urban schools: a quasi‑experimental study in the Ecuadorian highlands. HCEDUIJ [Internet]. 2025 Mar. 10 [cited 2026 Sep. 20];1(1):37-56. Available from: https://www.horizontecientifico.asesoreseducativos-ec.com/index.php/edu/article/view/53