Dulio Oseda Gago , Ruth Katherine Mendivel Gerónimo, Jesús Mery Arias Huánuco, Angélica Sánchez Castro (2021) “Cooperative learning and notions of geometry in 5-year-old children in educational preschool institutions”, Turkish Journal of Computer and Mathematics Education (TURCOMAT), 12(14), pp. 3683–3690. doi: 10.17762/turcomat.v12i14.10998.