ATIKA FEBRI MELINDA; ANIL HAKIM SYOFRA; DESNIARTI DESNIARTI; MAPILINDO MAPILINDO. The Effect Of The Open Learning Model On Student’s Understanding Of Mathematical Concepts In The Topic Of Arithmetic Sequences And Series At State High School 1 Simpang Empat, 10th Grade, Using The Geogebra Application. International Journal Of Humanities Education and Social Sciences, [S. l.], v. 6, n. 2, 2026. DOI: 10.55227/ijhess.v6i2.2585. Disponível em: https://ijhess.com/index.php/ijhess/article/view/2585. Acesso em: 29 oct. 2026.