**Research Interests**

1) Developing measures of mathematics teachers’ knowledge and competencies

2) Mathematics teaching and teacher education

3) Research on learning and teaching Geometry

4) Educational technologies in mathematics classrooms

**Publications**

Martinovic, D., **Manizade, A. G.** (2018). The challenges in the assessment of knowledge for teaching geometry. ZDM, 50 (4), 613-629. DOI: https://doi.org/10.1007/s11858-018-0934-4

**Manizade, A.G.** (2018). Contributors to our success story. Virginia Mathematics Teacher, 44(2), 6.

**Manizade, A. G.**, & Martinovic, D. (2018). Creating profiles of geometry teachers’ PCK. In Patricio Herbst, Ui Hock Cheah, Philippe Richard, and Keith Jones (eds.). International Perspectives on the Teaching and Learning of Geometry in Secondary Schools. Switzerland: Springer Publishers. DOI: 10.1007/978-3-319-77476-3

**Manizade, A.G.** (2017). Superheroes at work. Virginia Mathematics Teacher, 44(1), 6.

Martinovic, D., **Manizade,
A. G.** (2017). Using Grounded Theory to extend PCK framework at the
secondary level. *Education Sciences,
Special Issue: Critical Issues in Mathematics Education.* 7 (60), 1-17. DOI:
10.3390/educsci7020060

**Manizade, A. G.** (2017). Universal
language of Mathematics. *Virginia
Mathematics Teacher*, 43(2), 6.

**Manizade, A. G.**, Jacobsen, L.,
Belcher, C., Thien, R., Lovin,
J., Brady, S., Baker, D. (2016). Secondary Mathematics Professional Development
Center. *Virginia Mathematics Teacher*,
43 (1), 20-25.

**Manizade, A. G.** (2016). Sharing
the knowledge: Message from the editor. *Virginia
Mathematics Teacher*, 43 (1), 6.

**Manizade, A. G.**, Martinovic, D.
(2016). Developing an interactive instrument for
measuring teachers’ professionally situated knowledge in geometry and measurement.
In P. Moyer-Packenham (eds.),*International Perspectives on Teaching and Learning
Mathematics with Virtual Manipulatives* (pp.323-342). Switzerland: Springer Publishers. doi
10.1007/978-3-319-32718-1_14

**Manizade, A. G.** (2016). If you
can do math, you can do anything: Note from the editor. *Virginia Mathematics Teacher*, *42*
(2), 6.

**Manizade, A. G.**, Mason, M. (2015) Teaching dilemmas:
getting it right with trapezoids, *Virginia
Mathematics Teacher, 42 (1),* 29-32.

**Manizade, A .G.** (2015) Note from
the editor. *Virginia Mathematics Teacher*,
*42* (1), 6.

**Manizade, A. G.**, & Martinovic, D. (2014). Developing a Dynamic Instrument for
Assessing Teachers’ Professionally Situated Knowledge of Geometry. In Proceedings of
the 5th North American GeoGebra Conference: Explorative Learning with
Technology; Toronto, ON, Canada, 21–22 November 2014; Martinovic, D., Karadag, K., McDougall, D., Eds.; University of Toronto:
ON, Toronto, 2014; pp. 23-34.

Martinovic,
D., & **Manizade, A. G.** (2014).
Technology as a partner in the geometry
classrooms. *The Electronic Journal of
Mathematics and Technology*,* 8*(2),
69-87. Retrieved from
https://php.radford.edu/~ejmt/deliverAbstract.php?paperID=eJMT_v8n2a1.
Reprinted in The Research Journal of Mathematics and Technology, 3 (1), ISSN
2163-0380.

**Manizade, A. G.**, Mason, M.
(2014). Developing the area of a trapezoid.**
***Mathematics Teacher*, *107* (7), 509-514.

Martinovic, D., **Manizade,
A. G.** (2014). Technology as a partner in the geometry classroom. *The Electronic Journal of Mathematics and
Technology*,* 8* (2), 69-87.

Martinovic, D., **Manizade,
A. G.** Teachers Evaluating Dissections as an Approach to Calculating Area of
Trapezoid: Exploring the Role of Technology. In Proceedings of the 5th North
American GeoGebra Conference: Explorative Learning with Technology; Toronto,
ON, Canada, 21–22 November 2014; Martinovic, D., Karadag,
K., McDougall, D., Eds.; University of Toronto: ON, Toronto, 2014; pp. 44–50.

**Manizade, A. G.**, Jacobsen, L.
(2013). Providing high-quality professional development for all. In Martinez,
M. V. & Castro Superfine, A. C. (Eds.). *Proceedings
of the 35*^{th} Conference of the International Group for the Psychology
of Mathematics Education of the North American Chapter. 825-828. Chicago,
IL: PMENA.

**Manizade, A. G.**, Jacobsen, L.
(2013). Access to professional development opportunities for mathematics
teachers in rural USA. In Lindmeier, A.M. &
Heinze, A. (Eds.) *Proceedings of the 37*^{th}
Conference of the International Group for the Psychology of Mathematics
Education,* 5*, 243. Keil, Germany: PME.

**Manizade, A. G.**, Martinovic, D.
(2013). PCK and TPCK: The case of the area of a trapezoid. In Lindmeier, A.M. & Heinze, A. (Eds.) *Proceedings of the 37*^{th}
Conference of the International Group for the Psychology of Mathematics
Education,* 5*, 118. Keil, Germany: PME.

**Manizade, A.G.**, Mason, M.
(2011). Using Delphi methodology to design assessments of teachers' pedagogical
content knowledge.* Educational Studies in
Mathematics,76 *(2), DOI: 10.1007/s10649-010-9276-z

Yang, W., **Manizade,
A. G.** (2010). Use of dynamic course core to develop teachers’ subject
matter knowledge of mathematics. *The
Electronic Journal of Mathematics and Technology, 4 *(2) ISSN 1933-2823.

**Manizade, A. G.** (2009). Proceedings of the 31^{st} Annual
Meeting of the North American Chapter for the International Group for the
Psychology of Mathematics Education:* **Learning about Proof by Building Conjectures. (PME-NA)*, Atlanta, GA.

**Manizade, A. G.** (2009). Proceedings of the 31^{st} Annual
Meeting of the North American Chapter for the International Group for the
Psychology of Mathematics Education: *Developing
as Middle Grades Mathematics Teachers: Career Changes. (PME-NA)*, Atlanta, GA

**Manizade, A. G.** (2009). Proceedings of the 31^{st} Annual
Meeting of the North American Chapter for the International Group for the
Psychology of Mathematics Education: *Delphi
Method: A Different Approach of Creating Measures of Professional Knowledge for
Teaching. (PME-NA)*,
Atlanta, GA.

Che, S.M., Spearman, M., & **Manizade, A.** (2009). Constructive disequilibrium: cognitive and
emotional development through dissonant experiences in less-familiar
destinations. In R. Lewin (Ed.), *Handbook
of Practice and Research in Study Abroad: Higher Education and the Quest for
Global Citizenship.* New York, NY: Routledge.

**Manizade, A. G.** (2009). New
mathematical dimensions: Adam’s story. *Understanding
Our Gifted, 21* (2) Boulder, CO.

**Manizade, A. G.** (2005). Stohl, H., &
Harper, S.R. (Eds.),* *Technology tips:
Create a basic interactive classroom application using programming in
mathematics classrooms*. Mathematics
Teacher*,* 98* (5). 344-347.

Cory, B., **Manizade,
A. G.**, Sharp, B., Steckroth, J., & Garofalo,
J. (2004). A new look at Geometer's Sketchpad: Teaching area across grade levels. *School Science and Mathematics
Journal, 104* (5).
233-237.

**Manizade, A. G.** (2003).
Proceedings of the Society for Information Technology and Teacher
Education: * Using New Interactive Flash Mathematics
Software that Promotes Proportional Reasoning.* Albuquerque, NM. 2939-2941.

**Manizade, A. G.** (2002). *Using Fathom Software in a Mathematics
Classroom.* University of Virginia Center for Technology and Teacher
Education. Charlottesville, VA. Retrieved from
http://www.teacherlink.org/content/math/activities/fathom.html.

**Presentations**

**Refereed International and National**

**Manizade, A. G.**, Kaarstein, H., Orrill, C., & Kan, G. (July 2018). International perspectives: Measuring mathematics teachers’ knowledge in the digital era. Session presented at the 42nd International Group of the Psychology of Mathematics Education (PME). Umea, Sweden.

**Manizade A. G.**, Corey D. (July 2017) *GeoGebra
as a Partner and Extension of the Instructor: Graduate-level Coursework for Mathematics
Teachers*. Session Presented at the GeoGebra Global Gathering 2017. Linz,
Austria.

**Manizade A.G.**, Martinovic, D. (July 2017) *Incorporating On-line Dynamic Assessments for Measuring Teachers'
Knowledge into Math Teachers' Learning Process. *Session Presented at the
GeoGebra Global Gathering 2017. Linz, Austria

**Manizade, A.G.** (Accepted 2016) *Conceptualizing knowledge for teaching
geometry at the secondary level.* Session Presented at the 13^{th}
International Congress on Mathematical Education.* *Hamburg, Germany.

**Manizade, A.G.**, Martinovic, D. (July 2016) *Geometry teachers’ knowledge: Insights from the trapezoid study.*
Session Presented at the 13^{th} International Congress on Mathematical
Education.* *Hamburg, Germany.

Jacobsen, L., **Manizade A. G.** (March 2016). *NASA and Radford University’s
Simulation-Based Mathematics Teacher Professional Development. *Session
presented at the United States Department of Education, Math and Science
Partnership Annual Conference, Baltimore, Maryland.

Corey, D. L., Jacobsen, L., **Manizade, A.**, Dove, A., Galeshi, R.,
Younes, R. (March 2016). *Best Practices:
Lessons Learned From an Online Statewide Collaborative Master's in Mathematics
Education Program*. Proceedings of the Society for Information Technology
and Teacher Education Annual International Conference, Savannah, Georgia.

**Manizade A. G.**, Martinovic D. (November 2014). *Developing a Dynamic Instrument for Assessing Teachers’ Professionally
Situated Knowledge of Geometry.* Session presented at the Annual North American GeoGebra
Conference, Toronto, Canada.

Martinovic D., **Manizade A. G.**, (November 2014). * Teachers Evaluating Dissections as an Approach to Calculating Area of
Trapezoid: Exploring the Role of Technology. * Session presented at the Annual North American GeoGebra
Conference, Toronto, Canada.

**Manizade A. G.**, Martinovic, D., Jacobsen, L. (November 2014). *Impacting
High School Mathematics Teachers' Knowledge and Practice. *Session presented at the meeting of
the National Council of Teachers of Mathematics, Richmond, VA

Jacobsen, L., **Manizade A. G.**, (September 2014). *Secondary Mathematics Professional
Development Center*. Session presented at the United States Department of
Education, Math and Science Partnership Annual Conference, Washington, DC.

**Manizade, A. G.**, Martinovic, D., (July 2014). *Profiles of Teachers’ Professionally Situated Knowledge in Geometry.*
Session presented at the International Group of the Psychology of Mathematics
Education (PME), Vancouver, Canada.

Jacobsen, L., **Manizade A. G.**, (September 2013). *Secondary Mathematics Professional
Development Center*. Session presented at the United States Department of
Education's Math and Science Partnership 2013 Conference, Washington, DC.

**Manizade, A. G.**, Martinovic*, *D*., *(July 2012).* Identifying Cognitively Appropriate Technological Tasks Based on
Student’s Level of Geometric Thinking*. Session presented at the
International Congress of Mathematical Education, Seoul, Korea.

**Manizade, A. G.**, Martinovic*, *D*., *(July 2012).* Unfolding Pedagogic Strategies in Dynamic Mathematics
Software Use***. **Session presented
at the International Congress of Mathematical Education, Seoul, Korea.

**Manizade, A. G.**, Mason*, *M.,* *(July 2012).* Challenge for all: Area of a Trapezoid*. Session presented at the
International Congress of Mathematical Education, Seoul, Korea.

**Manizade, A. G.**, Jacobsen, L., (January 2012). *Using On-line Reflective Journals as a Way to Observe Changes in
Teachers' Professionally Situated Mathematical Knowledge. *Session presented
at the United States Department of Education's Math and Science Partnership
2012 Conference, New Orleans, LA.

**Manizade, A. G.**, Mason, M., (paper accepted/unable to attend) *Choosing Technology Applications:
Considering Students’ Mathematical Developmental Backgrounds*. Session
prepared for the 2011 Asian Technology Conference in Mathematics, Bolu, Turkey.

**Manizade, A. G.**, Mason, M., (April 2011). *Designing Assessments of Teachers’ Professionally Situated Knowledge*.
Session presented at the Annual Meeting of American Educational Research
Association (AERA), New Orleans, LA.

Yang, W., **Manizade, A. G.**, (October 2010). *Developing Content Knowledge for Teaching*. Session presented at the
32^{nd} Annual Conference of the North American Chapter of the
International Group for the Psychology of Mathematics Education (PME-NA),
Columbus, Ohio.

**Manizade, A. G.**, (July 2010). *Choosing
GeoGebra Applications Most Appropriate for Teacher’s Current Geometry
Classroom: Pedagogical Perspective. *Session
presented at the Annual Meeting of North American GeoGebra Conference, Ithaca,
NY.

**Manizade, A. G.**, (September 2009). *Interview Session. *Session presented at the* *31^{st} *A*nnual
Meeting of the Psychology of Mathematics Education, Atlanta, GA

**Manizade, A. G.**, (July 2008) *Developing
Rubrics & Measures for Evaluation of Mathematics Teachers Pedagogical
Content Knowledge of Geometry & Measurement at the Lower Secondary Level:
Delphi Study*. Session presented at the Annual Meeting of International
Congress on Mathematical Education (ICME), Monterrey, Mexico.

Che, S.M., **Manizade****, A**., (October 2007). *What
about the Other Half? Mathematical Thinking and the GED.* Paper presented at
the 29th Annual Conference of the North American Chapter of the International
Group for the Psychology of Mathematics Education (PME-NA), Lake Tahoe, NV.

**Manizade, A. G.**, Che, S. M., (July 2007). *Creating E-portfolio to Collect and Present the Evidence of Preservice
Teachers’ Content Knowledge and Pedagogical Content Knowledge Growth at the
Secondary Level*. Session presented at the 8^{th} International
Conference on Technology in Mathematics Teaching (ICTMT), Hradec Králové, **Czech Republic.**

**Manizade, A. G.****, (March 2007). ***Teachers’ Pedagogical Content Knowledge of
Geometry and Measurement.* Paper presented at the Annual Meeting of the National
Council of Teachers of Mathematics (NCTM), Atlanta, GA.

**Manizade, A. G.**, (July 2006). *New
Mathematical Dimensions.* Session presented at the Third International
Conference on the Teaching of Mathematics (ICTM), Istanbul, Turkey.

**Manizade, A. G.**, (April 2004). *Geometry
teaching: Where is the research?* Session presented at the Annual Meeting of
the National Council of Teachers of Mathematics (NCTM), Philadelphia, PA.

**Manizade, A. G.**, (November 2003). *Exploring Geometry Using Flash-based Applications. *Session
presented at the meeting of the National Council of Teachers of Mathematics
(NCTM), Charleston, SC.

Timmerman, M., Garofalo, J.,
Cory, B., **Manizade, A. G.**, Sharp,
B., (January 2003). *Mathematics and
Handheld Devices*. Session presented at the Annual Meeting of the
Association of Mathematics Teacher Educators (AMTE), Atlanta, GA.

Garofalo, J., Sharp, B., Cory,
B., **Manizade, A. G.**, (January 2003*).
Developing and Using Flash 5 Applications to Teach Fraction Concepts.*
Session presented at the Annual Meeting of the Association of Mathematics
Teacher Educators (AMTE), Atlanta, GA.

Vasques-Levy,
D., **Manizade, A. G.**, (February
2002). *Technology Initiatives in
Professional Development.* Discussant report presented at the Annual Meeting
of American Educational Research Association (AERA), New Orleans, LA.

**Invited Presentations**

**Manizade, A. G.**, (September 2018). Grant and Award Opportunities from the Virginia Council of Teachers of Mathematics. Invited Presentation at the Southwest Virginia Council of Teachers of Mathematics, Abingdon, VA.

**Manizade, A. G.**, Weltens, K., (September 2018). Radford Child Development Center. Invited Presentation at the Radford University Foundation, Radford, VA.

**Manizade, A. G.**, (December 2016). *Radford Child Development Center*. Invited Presentation at the
Radford University Foundation, Radford, VA.

**Manizade, A. G.**, (September 2015). Fabulous Teaching Practices in
40 sec, min, hours…. Keynote Speaker at the 40^{th} Annual Conference
of Southwest Virginia Council of Teachers of Mathematics, Bristol, VA.

**Manizade, A. G.**, (May 2013). *Radford
Child Development Center*. Invited Presentation at the Smart Beginnings
Annual Meeting, Radford, VA.

**Manizade, A. G.**, Jacobsen, L., (March 2012). *Secondary Mathematics Professional Development Center. *Invited
Presentation at the Virginia Council of Mathematics Supervisors, Richmond,
VA.

Clay, P., Che, S. M., **Manizade, A. G.**, Mello, N., &
Spearman, M., (March 2010). *Constructive
Disequilibrium: Do the ends justify the means?* Invited Presentation
at the Forum on Education Abroad Standards of Good Practice Institute beyond
the Basics of Health, Safety and Security, Charlotte, NC.

**Manizade, A.G.**, (February 2008). *Training Mathematics Specialists & Measuring Teachers' Professional
Growth.* Invited Presentation at the Research Consortium at the Illinois
State University, Normal, IL.

**Manizade, A. G.**, (August 2007). *Designing
Measures for Assessing Teachers' Pedagogical Content Knowledge of Geometry and
Measurement at the Middle School Level (Research Report).* Invited
Presentation at the Conference Pre-Sessions, TEAM MATH: East Alabama
Partnership for Improving Mathematics Education, Tuskegee, AL.

**State and Local Presentations**

**Manizade, A. G.**, Leo, C. (September 2018). Incorporating Open-Source Technology Tools into Mathematics Classrooms: GeoGebra. Session Presented at the 2018 Southwest Virginia Council of Teachers of Mathematics Annual Conference, Abingdon, VA

**Manizade, A. G.**, Leo, C. (March 2018). How to Get Published in an Award-Winning Journal. Session Presented at the 2018 Virginia Council of Teachers of Mathematics Annual Conference, Radford, VA

Leo, C., Largen, A., **Manizade, A. G.** (March 2018). GeoGebra Workshop for Beginners. Session Presented at the 2018 Virginia Council of Teachers of Mathematics Annual Conference, Radford, VA

Largen, A., Leo, C., **Manizade, A. G.** (March 2018). GeoGebra Workshop for Intermediate Level. Session Presented at the 2018 Virginia Council of Teachers of Mathematics Annual Conference, Radford, VA
**Manizade, A. G**., Mistele, J. (March 2017). *Writing for a Practitioner Journal.* Session Presented at the 2017
Virginia Council of Teachers of Mathematics, Harrisonburg, VA

Akers, M., Banks D., Brendle, H., Epps, D., Funkhouser, R., Graf, H., Guzman,
K., Isom, K., Wallace, V., Winkler K., **Manizade,
A. G.** (March 2017). *Wrap Your Mind Around the Area of the Circle.* Session Presented at the 2017 Virginia Council of
Teachers of Mathematics, Harrisonburg, VA

**Manizade, A. G.**, Younes, R. (March 2016). *Writing an Article Based on Your Own Teaching: Why and How?* Session
presented at the Virginia Council of Teachers of Mathematics, Stafford, VA.

Banks, D., Becouvarakis,
S., Guzman, K., Lambert, J., Smith, A., **Manizade,
A. G.**, Younes, R. (March 2016). *Using
Technology to Teach Geometry and Measurement*. Session presented at the
Virginia Council of Teachers of Mathematics, Stafford, VA.

**Manizade, A. G.**, Jacobsen, L., Younes, R., (October 2014). *Creating Patterns and Describing Them
Algebraically.* Session presented at the Annual Mathematics Day,
Williamsburg, VA.

**Manizade, A. G.**, Jacobsen, L., Brady S., Dickerson, P., (March
2012). *Lessons Learned: Radford
University Mathematics & Science Partnership Project.* Session presented
at the Virginia Council of Teachers of Mathematics, Roanoke, VA.

**Manizade, A. G.**, Jacobsen, L., (March 2011). *Teaching Algebra,
Functions, and Data Analysis (AFDA) *(9-12) Session presented at the
Virginia Council of Teachers of Mathematics, Richmond, VA.

**Manizade, A. G.**, (September 2009). *Making Connections between Algebra & Geometry*. Session
Presented at the Virginia State Algebra and 21st
Century Connections: Implications for Instruction, Richmond, VA.

**Manizade, A. G.**, (October 2006). *Classroom Implications of Theories of Geometry Learning and Teaching. *Session
presented at the South Carolina Council of Teachers of Mathematics, Myrtle
Beach, SC.

Che, S.M., **Manizade****, A. G.**, (October 2006).*
Identity, Dispositions, and Avenues for Change. *Session presented at the
South Carolina Association of Teacher Educators, Myrtle Beach, SC

**Manizade, A.G.**, (September 2004). *Teaching Geometry in the middle School: Applying van Hiele’s Theory.* Session presented at Stafford
Mathematics Teachers’ Meeting, Stafford, VA

**Manizade, A. G.**, (March 2004). *Mathematics
and Flash Programming: Working With Gifted Students*. Session presented at
the Institutes in Academic Diversity 2004: Best Practice Institute for Special
Educators, Charlottesville, VA.

**Manizade, A.G.**, (March 2003). *Teaching
Children Rational Numbers through Flash Programming.* Session presented at
the annual meeting of the Virginia Council of Teachers of Mathematics,
Richmond, VA.

**Manizade, A. G.**, (March 2002). *Using Fathom in a Secondary
Mathematics Classroom*. Session presented at the Virginia Council of
Teachers of Mathematics, Manassas, VA.

**Manizade, A.G.**, (October 2000). *Equations
and Graphing Calculators in a Standards of Learning (SOL)
Related Algebra Course*. Session presented at the Peninsula Council of
Teachers of Mathematics, Hampton, VA.

**Manizade, A.G.**, (August 2000). *Using
Graphing Calculator When Introducing Functions.* Session presented at the
local Eisenhower Conference for 4-5^{th} grade Mathematics Teachers,
Williamsburg, VA.

**Manizade, A.G.**, (Spring, 1999). *Real
World Problems in Teaching Functions in Algebra and Precalculus Courses.*
Session presented at the local Eisenhower Conference for High School
Mathematics Teachers, Williamsburg, VA