1.         Özel, S. (2016, October 1). A Talk at the Big Jump: STEAM, Bogazici University, Istanbul, Turkey.

2.         Özel, S. (2016, June 15). Current Threat: Internet, Robert College Alumni, Istanbul, Turkey.

3.         Özel, S. (2014, December 16). Panelist at the Education Monitoring Report 2013 Meeting, Bogazici University, Istanbul, Turkey.

4.         Özel, S. (2013, November). Curriculum Development and Textbook Writing. Presented at Trends in Mathematics Education Reform Conference, Bogazici University, Istanbul, Turkey.

5.         Özel, S. (2012, September). A seminar on developing and writing a project. Presented at Fatih High Schools, Istanbul, Turkey.

6.         Özel, S. (2008, February). A technology intervention using multiple representations on mathematics. Presented at the UT-A&M Meeting at Texas A&M University, College Station, TX.

7.         Özel, S. (2007, December). The use of educational technologies in k-12. Invited address at Polatli TED High School, Ankara, Turkey.

8.         Capraro, R. M., Wright, K., Yetkiner, Z. E., Indiogine, S. E., Özel, S., & Piccolo, D. (2007, May). PK-4 module research component: Assessing the mathematics content knowledge of fraction and place value concepts in early grades preservice teachers. Presented at the Aiming for Excellence in Mathematics Teacher Preparation Seminar, College Station, TX.