Doğan Temur, Özlem, Serap Akbaba Dağ, and Sedat Turgut. 2017. “Some Reflections from Pre-Service Elementary teachers’ Practice Teaching on the Area of Understanding Data in the Math-Teaching Course”. International Electronic Journal of Elementary Education 7 (3):355-70. https://iejee.com/index.php/IEJEE/article/view/85.