A unit formulated according to climbing the hill strategy to develop the historical understanding skills of first year secondary students. Journal of Curriculum and Teaching Methodology, [S. l.], v. 1, n. 2, p. 143–159, 2022. DOI: 10.26389/AJSRP.S101221. Disponível em: https://journals.ajsrp.com/index.php/jctm/article/view/4707.. Acesso em: 25 aug. 2024.