POURNARA, Craig. Grade 9 learners’ algebra performance: Comparisons across quintiles, insights from errors and curriculum implications. South African Journal of Science, [S. l.], v. 116, n. 9/10, 2020. DOI: 10.17159/sajs.2020/8125. Disponível em: https://sajs.co.za/article/view/8125. Acesso em: 2 dec. 2024.