## Education Information

2021 - Continues

2021 - Continues###
**Post Doctorate**

#### Charles University, Faculty of Education, Department of Mathematics and Mathematical Education, Czech Republic

2012 - 2016

2012 - 2016###
**Doctorate**

#### North Carolina State University, College of Education, Mathematics Education, United States Of America

2009 - 2011

2009 - 2011###
**Postgraduate**

#### Karadeniz Technical University, Eğitim Bilimleri Enstitüsü, Ortaoöğretim Fen ve Matematik Alanları Eğitimi, Turkey

2006 - 2008

2006 - 2008###
**Undergraduate**

#### Anadolu University, Faculty Of Educatıon, Department Of Prımary School, Turkey

## Dissertations

2016

2016###
**Doctorate**

#### Middle school students’ reasoning about 3-dimensional objects: A case study

##### North Carolina State University, - Science, Technology, Engineering And Mathematics (Stem) Education,, Mathematics Education,

2011

2011###
**Postgraduate**

#### Dinamik geometri ortamlarının 7. sınıf öğrencilerinin dörtgenleri tanımlama ve sınıflandırma becerilerine etkilerinin incelenmesi

##### Karadeniz Technical University, Ortaöğretim Fen Ve Matematik Anabilim Dalı, Matematik Eğitimi Bilim Dalı

## Research Areas

#### Social Sciences and Humanities, Education, Elementary School Education, Teacher Training For Elementary Sch. Edu. in Mathematics

## Advising Theses

2021

2021###
**Postgraduate**

####
**7. SINIF ÖĞRENCİLERİNİN BİRİM KÜPLERDEN OLUŞAN YAPILARI İZOMETRİK KÂĞITTA ÇİZME DURUMLARININ İNCELENMESİ **

#### Okumuş S. (Consultant)

##### H.AL(Student)

2021

2021###
**Postgraduate**

####
**İLKOKUL VE ORTAOKUL MATEMATİK DERS KİTAPLARINDAKİ TEMEL GEOMETRİK KAVRAMLARIN İNCELENMESİ **

#### Okumuş S. (Consultant)

##### V.KARAHAN(Student)

2021

2021###
**Postgraduate**

####
**8. SINIF ÖĞRENCİLERİNİN ÇOKGENLERİN BENZERLİĞİNİ BELİRLEME STRATEJİLERİNİN İNCELENMESİ **

#### Okumuş S. (Consultant)

##### A.ŞALCIOĞLU(Student)

## Articles Published in Journals That Entered SCI, SSCI and AHCI Indexes

2020

2020###
**Towards an Official Computational Thinking Education in Regular School Settings. Review of Computational Thinking Education, edited by Siu-Cheung Kong and Harold Abelson.**

#### Okumuş S.

##### Constructivist Foundations, vol.16, no.1, pp.129-132, 2020 (Journal Indexed in AHCI)

2017

2017###
**A Review of Tools and Mathematics: Instruments for Learning**

#### Hollebrands K., OKUMUŞ S.

##### JOURNAL FOR RESEARCH IN MATHEMATİCS EDUCATİON, vol.48, no.5, pp.580-584, 2017 (Journal Indexed in SSCI)

2017

2017###
**Pivotal teaching moments in technology-intensive secondary geometry classrooms**

#### Cayton C., Hollebrands K., Okumus S. , Boehm E.

##### JOURNAL OF MATHEMATICS TEACHER EDUCATION, vol.20, no.1, pp.75-100, 2017 (Journal Indexed in SSCI)

2016

2016###
**Utility and usability as factors influencing teacher decisions about software integration**

#### Okumus S. , Lewis L., Wiebe E., Hollebrands K.

##### ETR&D-EDUCATIONAL TECHNOLOGY RESEARCH AND DEVELOPMENT, vol.64, no.6, pp.1227-1249, 2016 (Journal Indexed in SSCI)

## Articles Published in Other Journals

2021

2021###
**Prospective mathematics teachers’ use of linguistic signifiers in the context of angles formed by two lines cut by a transversal**

#### OKUMUŞ S. , ZEYBEK ŞİMŞEK Z.

##### The Journal of Mathematical Behavior, vol.63, pp.1-16, 2021 (Refereed Journals of Other Institutions)

2021

2021###
**High school students' use of technology to make sense of functions within the context of geometric transformations**

#### Hollebrands K., Mcculloch A., Okumuş S.

##### Digital Experiences in Mathematics Education, vol.7, no.2, pp.247-275, 2021 (Refereed Journals of Other Institutions)

2020

2020###
**Elektronik Beşli Çark, Basamak Değeri Çizelgesi ve Dokunma Sayar’da Sayının Anlamları**

#### Okumuş S.

##### Mersin Üniversitesi Eğitim Fakültesi Dergisi, vol.16, no.3, pp.604-627, 2020 (Other Refereed National Journals)

2019

2019###
**Karşılaştırma Yoluyla Hacim ve Yüzey Alanı Bulma: Küre Örneği**

#### OKUMUŞ S.

##### Apsistek Aylık Matematik Dergisi, 2019 (National Non-Refereed Journal)

2019

2019###
**Middle school students' employments of gestures for forming three-dimensional objects using an extrusion or spinning method**

#### Okumus S. , Hollebrands K.

##### JOURNAL OF MATHEMATICAL BEHAVIOR, vol.56, 2019 (Journal Indexed in ESCI)

2018

2018###
**Secondary mathematics teachers' instrumental integration in technology-rich geometry classrooms**

#### Hollebrands K., Okumus S.

##### JOURNAL OF MATHEMATICAL BEHAVIOR, vol.49, pp.82-94, 2018 (Journal Indexed in ESCI)

2017

2017###
**Prospective mathematics teachers’ processes for solving optimization problems using Cabri 3D**

#### Hollebrands K., OKUMUŞ S.

##### Digital Experiences in Mathematics Education, vol.3, no.3, pp.206-232, 2017 (Refereed Journals of Other Institutions)

2012

2012###
**İlköğretim matematik öğretmen adaylarının matematiksel problem çözmede kullandıkları temsiller**

#### İPEK A. S. , OKUMUŞ S.

##### Gaziantep Üniversitesi Sosyal Bilimler Dergisi, vol.11, no.3, pp.681-700, 2012 (National Refreed University Journal)

2011

2011###
**Brousseau nun matematiksel öğrenme ortamları kuramı ve adidaktik ortamın bir uygulaması**

#### ARSLAN S., BARAN BULUT D. , OKUMUŞ S.

##### Necatibey Eğitim Fakültesi Elektronik Fen ve Matematik Eğitimi Dergisi (elektronik), vol.5, no.1, pp.204-224, 2011 (Other Refereed National Journals)

## Refereed Congress / Symposium Publications in Proceedings

2021

2021###
**High School Student’s Strategies for Reasoning about Geometric Representations of Function**

#### McCulloch A., Hollebrands K., OKUMUŞ S.

##### 14th International Congress on Mathematical Education (ICME 14), Shanghai, China, 11 - 18 July 2021

2021

2021###
**Conceiving volume as a multiplication of three quantities: The cases of Stan and Sloane**

#### Okumuş S.

##### 14th International Congress on Mathematical Education (ICME 14)., Shanghai, China, 11 - 18 July 2021, pp.1-4

2019

2019###
**Introduction to the work of TWG24: Representations in mathematics teaching and learning**

#### Baccaglini-Frank A., Finesilver C., OKUMUŞ S. , Tabach M.

##### Eleventh Congress of the European Society for Research in Mathematics Education, Utrecht, Netherlands, 6 - 10 February 2019

2019

2019###
**Prospective mathematics teachers’ extrapolative reasoning about misleading bar graphs**

#### Okumuş S. , Dede E.

##### Congress of the European Society for Research in Mathematics Education (CERME 11), Utrecht, Netherlands, 6 - 10 February 2019, pp.4581-45888

2018

2018###
**An Iplementation of STEM Education in the Context Of Astronomy: Reflections from a Project On Modelling With Robots**

#### SANDALCI Y., TEKBIYIK A. , İPEK A. S. , OKUMUŞ S.

##### International Conference on Mathematics and Mathematics Educations, 27 - 29 June 2018

2018

2018###
**Pre-service mathematics teachers' investigation of the constraints of mathematical tools**

#### OKUMUŞ S. , İPEK A. S.

##### Re(s)sources 2018, Lyon, France, 28 - 30 May 2018, pp.316-319

2017

2017###
**(Un)intended representations in dynamic geometry software: pedagogical considerations**

#### OKUMUŞ S.

##### International Conference on Technology in Mathematics Teaching (ICTMT 13), Lyon, France, 3 - 06 July 2017, pp.412-418

2017

2017###
**Üç Boyutlu şekillerin oluşturulması sürecinde öğrenciler arasında yaşanan etkileşimler**

#### OKUMUŞ S.

##### 3. Türk Bilgisayar ve Matematik Eğitimi Sempozyumu, Afyon, Turkey, 17 - 19 May 2017, pp.366-367

2017

2017###
**Middle school students’ employments of gestural signs: a case study**

#### OKUMUŞ S. , Hollebrands K.

##### The Tenth Congress of the European Society for Research in Mathematics Education, Dublin, Ireland, 1 - 05 February 2017, pp.3960-3967

2016

2016###
**High school students’ forming 3D objects using technological and
non-technological tools**

#### OKUMUŞ S. , Hollebrands K.

##### Proceedings of the 38th annual meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education, Tucson, Az, United States Of America, 3 - 06 November 2016, pp.243-250

2016

2016###
**Mathematical, cognitive and pedagogical fidelity in the evaluation of mathematical tools**

#### OKUMUŞ S.

##### 6th International Conference on Research in Education, Rize, Turkey, 13 - 15 October 2016, pp.1

2016

2016###
**Links between gestural signs and dynamic geometry software: Exploiting the semiotic potentials of Cabri 3D**

#### OKUMUŞ S.

##### Research and Innovation in Teaching Mathematics with Technology, La Crosse, Wı, United States Of America, 11 - 12 July 2016, pp.1-3

2015

2015###
**Teacher and student interactions in technology intensive high school algebra classrooms**

#### OKUMUŞ S. , Cayton C., Hollebrands K.

##### Association of Mathematics Teacher Educators, Orlando, Fl, United States Of America, 12 - 14 February 2015, pp.1-4

2014

2014###
**High school students’ reasoning about properties of solids using DGS**

#### HOLLEBRANDS K., OKUMUŞ S.

##### Proceedings of the Joint Meeting of PME 38 and PME-NA 36, Vancouver, Bc, Canada, 15 - 20 July 2014, vol.6, pp.315

2014

2014###
**Prospective secondary mathematics teachers’ construction of box plots and distributional reasoning with three construction tools**

#### OKUMUŞ S. , THRASHER E.

##### Proceedings of the Joint Meeting of PME 38 and PME-NA 36, Vancouver, Bc, Canada, 15 - 20 July 2014, vol.4, pp.369-376

2014

2014###
**Problems that prospective mathematics teachers had while using Cabri 3D**

#### OKUMUŞ S. , HOLLEBRANDS K.

##### National Council of Teachers of Mathematics Research Pre-session, New Orleans, La, United States Of America, 7 - 09 April 2014, pp.1-3

2014

2014###
**An investigation of teacher pedagogical strategies and student engagement in 1:1 laptop mathematics classrooms**

#### Patterson L., Wiebe E. N. , OKUMUŞ S. , Cayton C., Hollebrands K.

##### American Educational Research Association, Philadelphia, Pa, United States Of America, 3 - 07 April 2014, pp.1-10

2013

2013###
**A prospective mathematics teacher’s reasoning about minimization problems using Cabri 3D**

#### OKUMUŞ S. , HOLLEBRANDS K.

##### Proceedings of the 35th annual meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education, Chicago, Il, United States Of America, 14 - 17 November 2013, pp.1189-1192

2011

2011###
**8th grade Turkish students’ Van Hiele levels and classification of quadrilaterals**

#### GÜVEN B., OKUMUŞ S.

##### 35th Conference of the International Group for the Psychology of Mathematics Education, Ankara, Turkey, 10 - 15 July 2011, vol.2, pp.473-480

2010

2010###
**Fonksiyon kavramı öğretiminde karşılaşılan güçlüklerin giderilmesine yönelik bir çalışma**

#### OKUMUŞ S. , ATASOY E. , ATALAY H.

##### 4. International Computer and Instructional Technology Symposium (ICITS 2010), 24 - 26 October 2010, pp.811-815

2010

2010###
**İlköğretim Matematik Öğretmen Adaylarının Açı İle İlgili Algıları Üzerine Nitel Bir Araştırma**

#### İPEK A. S. , ATASOY E. , OKUMUŞ S.

##### 9. Matematik Sempozyumu Sergi ve Şenlikleri, Trabzon, Turkey, 20 - 22 October 2010

2009

2009###
**Matematik öğretmenlerinin matematik eğitiminde bilgisayar kullanımına yönelik tutum ve yeterlilikleri**

#### BARAN BULUT D. , OKUMUŞ S. , BİRGİN O., GÜVEN B.

##### 3rd International Computer ve Instructional Technologies Symposium, Trabzon, Turkey, 7 - 09 September 2009, pp.162-166

## Books & Book Chapters

2020

2020###
**Geometrik Cisimlerin Öğretimi: Koni ve Piramit**

#### Okumuş S.

##### in: Geometri ve Ölçme Öğretimi: Tanımlar, Kavramlar ve Etkinlikler, Erhan ERTEKİN,Melihan ÜNLÜ, Editor, Pegem Akademi, Ankara, pp.423-451, 2020

2020

2020###
**Geometrik Cisimlerin Öğretimi: Küre**

#### Okumuş S.

##### in: Geometri ve Ölçme Öğretimi: Tanımlar, Kavramlar ve Etkinlikler, Erhan ERTEKİN,Melihan ÜNLÜ, Editor, Pegem Akademi, Ankara, pp.453-482, 2020

2019

2019###
**Transitions Toward Digital Resources: Change, Invariance, and Orchestration**

#### Drijvers P., Gitirana V., Monaghan J., OKUMUŞ S. , Besnier S., Pfeiffer C., et al.

##### in: The Resource Approach to Mathematics Education, Trouche Luc, Gueudet Ghislaine, Pepin Birgit, Editor, Springer, Cham, Cham, pp.389-444, 2019

## Scientific Refereeing

August 2021

August 2021###
**JOURNAL OF MATHEMATICS TEACHER EDUCATION**

#### Journal Indexed in SSCI

July 2021

July 2021###
**Digital Experiences in Mathematics Education**

#### Other Indexed Journal

February 2021

February 2021###
**Digital Experiences in Mathematics Education**

#### Other Indexed Journal

June 2020

June 2020###
**JOURNAL OF MATHEMATICS TEACHER EDUCATION**

#### Journal Indexed in SSCI

April 2020

April 2020###
**Erzincan Üniversitesi Eğitim Fakültesi Dergisi**

#### National Scientific Refreed Journal

March 2020

March 2020###
**Türk Bilgisayar ve Matematik Eğitimi Dergisi**

#### National Scientific Refreed Journal

February 2020

February 2020###
**Erzincan Üniversitesi Eğitim Fakültesi Dergisi**

#### National Scientific Refreed Journal

February 2020

February 2020###
**Journal of Computer and Education Research**

#### National Scientific Refreed Journal

December 2019

December 2019###
**Türk Bilgisayar ve Matematik Eğitimi Dergisi**

#### National Scientific Refreed Journal

September 2019

September 2019###
**İlköğretim Online**

#### National Scientific Refreed Journal

August 2019

August 2019###
** Eğitimde Nitel Araştırmalar Dergisi**

#### National Scientific Refreed Journal

June 2019

June 2019###
**Digital Experiences in Mathematics Education**

#### Other Indexed Journal

February 2019

February 2019###
**Türk Bilgisayar ve Matematik Eğitimi Dergisi**

#### National Scientific Refreed Journal

January 2019

January 2019###
**The Journal of Mathematical Behavior**

#### Other Indexed Journal

December 2018

December 2018###
**Pegem Eğitim ve Öğretim Dergisi**

#### National Scientific Refreed Journal

December 2018

December 2018###
**Türk Bilgisayar ve Matematik Eğitimi Dergisi**

#### National Scientific Refreed Journal

October 2018

October 2018###
**Türk Bilgisayar ve Matematik Eğitimi Dergisi**

#### National Scientific Refreed Journal

July 2018

July 2018###
**The Journal of Mathematical Behavior**

#### Other Indexed Journal

December 2017

December 2017###
**Bayburt Eğitim Fakültesi Dergisi**

#### National Scientific Refreed Journal

August 2017

August 2017###
**Türk Bilgisayar ve Matematik Eğitimi Dergisi**

#### National Scientific Refreed Journal

July 2017

July 2017###
**Türk Bilgisayar ve Matematik Eğitimi Dergisi**

#### National Scientific Refreed Journal

June 2017

June 2017###
**The Journal of Mathematical Behavior**

#### Other Indexed Journal

November 2016

November 2016###
**International Journal of Education in Mathematics, Science and Technology**

#### Other Indexed Journal

## Edit Congress and Symposium Activities

2019

2019###
**Congress of the European Society for Research in Mathematics Education (CERME 11)**

#### Attendee

##### Utrecht-Netherlands

2018

2018###
**Re(s)sources 2018: International Conference**

#### Attendee

##### Lyon-France

2017

2017###
**International Conference on Technology in Mathematics Teaching (ICTMT 13)**

#### Attendee

##### Lyon-France

2017

2017###
**3. Türk Bilgisayar ve Matematik Eğitimi Sempozyumu**

#### Attendee

##### Afyon-Turkey

2017

2017###
**Congress of the European Society for Research in Mathematics Education (CERME 10)**

#### Attendee

##### Dublin-Ireland

2016

2016###
**VI. Uluslararası Eğitimde Araştırmalar Kongresi**

#### Attendee

##### Rize-Turkey

2016

2016###
**Research and Innovation in Teaching Mathematics with Technology**

#### Attendee

##### Wisconsin-United States Of America

2015

2015###
**The Nineteenth Annual Conference of the Association of Mathematics Teacher Educators (AMTE)**

#### Attendee

##### Florida-United States Of America

2014

2014###
**The Joint Meeting of the International Group for the Psychology of Mathematics Education (PME 38) and the North American Chapter of the Psychology of Mathematics Education (PME-NA 36)**

#### Attendee

##### Vancouver-Canada

2014

2014###
**National Council of Teachers of Mathematics (NCTM 92, Research Presession)**

#### Attendee

##### Louisiana-United States Of America

2013

2013###
**North American Chapter of the International Group for the Psychology of Mathematics Education (PME-NA 35)**

#### Attendee

##### Illinois-United States Of America

2011

2011###
**The International Group for the Psychology of Mathematics Education (PME 35)**

#### Attendee

##### Ankara-Turkey

## Scholarships

2021 - Continues

2021 - Continues###
**Postdoctoral scholarship (Charles University, CZECHIA)**

#### Official Institutions of Foreign Countries

2012 - 2016

2012 - 2016###
**Ph.D. Scholarship (North Carolina State University, the USA)**

#### YOK

2010 - 2010

2010 - 2010###
**Research scholarship for master's students (Indiana University, the USA)**

#### YOK

## Citations

**Total Citations (WOS):** 12

**h-index (WOS):** 2

## Jury Memberships

February-2020

February 2020###
**Doctorate**

#### Tez Savunma Jürisi (doktora) Tez yazarı: Yasemin TÜRK - Trabzon Üniversitesi, Lisansüstü Eğitim Enstitüsü

July-2019

July 2019###
**Post Graduate**

#### Tez Savunma Jürisi (yüksek lisans) Tez yazarı: Kerem HUT - Recep Tayyip Erdoğan Üniversitesi, Sosyal Bilimler Enstitüsü

August-2018

August 2018###
**Post Graduate**

#### Tez Savunma Jürisi (yüksek lisans) Tez yazarı: Mikail YÜKSEL - Bayburt Üniversitesi, Sosyal Bilimler Enstitüsü

August-2018

August 2018