Divrik, Ramazan, et al. “Effect of Inquiry-Based Learning Method Supported by Metacognitive Strategies on Fourth-Grade Students’ Problem-Solving and Problem-Posing Skills: A Mixed Methods Research”. International Electronic Journal of Elementary Education, vol. 13, no. 2, Jan. 2021, pp. 287-08, https://www.iejee.com/index.php/IEJEE/article/view/1330.