P. Israel D, S. Camara J. TEACHING GEOMETRY WITHOUT USING CALCULATORS: AN EXPERIMENTAL CASE ON GRADE-9 THAI LEARNERS. ISA [Internet]. 2021 Sep. 28 [cited 2026 Jul. 29];1(5):11-27. Available from: https://telosjournals.com.br/ojs15/index.php/isa/article/view/44