Kemal Özgen, Burcu Aparı, Yılmaz Zengin. (2019). Problem Posing Based Learning Approaches of Eighth Grade Students: Implementation of Active Learning Framework Supported by GeoGebra. Turkish Journal of Computer and Mathematics Education (TURCOMAT), 10(2), 501–538. Retrieved from https://turcomat.org/index.php/turkbilmat/article/view/212