AK, Derya; ULUSAN, Serhan; ÖZEN ÜNAL, Deniz. An Investigation of Activities on Angles in the GeoGebra Library from the Perspective of Dynamic Geometry Task Analysis. International Journal of Mathematics Teaching and Interdisciplinary Practices, Türkiye, v. 1, n. 2, p. 1–27, 2026. Disponível em: https://www.ijmtip.com/index.php/journal/article/view/10. Acesso em: 20 aug. 2026.