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 (Sep. 2021), 3683–3690. DOI:https://doi.org/10.17762/turcomat.v12i14.10998.