Reading and writing in the early grades of elementary school: Challenges and learning in two schools in the municipality of Belém, Pará State (PA), Brazil. RSD [Internet]. 2024 Mar. 18 [cited 2025 Jun. 28];13(3):e7013345295. Available from: https://ojs34.rsdjournal.org/index.php/rsd/article/view/45295