Staff profile

Staff image

Dr Wanty Widjaja

Position: Senior Lecturer in Education (Maths Education)
role description
Faculty or Division: Faculty of Arts and Education
Department: SoE Arts & Ed
Campus: M1.10, Melbourne Burwood Campus
Phone: +61 3 924 46922 +61 3 924 46922



  • Master of Education, Boston University, 2002
  • Doctor of Philosophy (Education), University of Melbourne, 2008
  • Graduate Certificate of Higher Education, Deakin University, 2013

Career highlights

Between 2008-2010, Wanty joined a selected team of the Southeast Asian Minsters of Education Organization (SEAMEO) Regional Centre for Quality Improvement of Teachers and Education Personnel (QITEP) in Mathematics to provide professional development sessions for in-service teachers from Southeast Asian Countries (Brunei, Malaysia, Burma, Cambodia, Indonesia). Between 2008-2010, Wanty was research task force leader of the international project, ‘Pendidikan Matematika Realistik Indonesia’ (PMRI) as part of an international collaborative project funded by the Indonesian government and the Netherlands (Do-PMRI project).

Drawing on her research experience on mathematical reasoning project and Lesson Study, Wanty was involved in delivering professional development sessions for numeracy coaches for networks of schools in the former Western Metropolitan Region in 2013 and at the Primary Mathematics and Science Specialists Program in 2015. She has been the managing editor for The Indonesian Journal of Mathematics Education (JIMs-B) published by the Indonesian Mathematical Society since 2011.


Mathematics Education Research Group of Australasia (MERGA)

The Mathematical Association of Victoria (MAV)
Indonesian Mathematical Society (IndoMS)

Professional activities

Bachelor of Education Selection Committee (2012)

Faculty of Arts and Education Human Ethics Advisory Research Group (2014-present)

Canada Coordinator, Global Experience Program (2013-2014)

Editorial Board, Prime Number

Editorial Boad, JIMS-B journal

Reviewer for Mathematics Education Research Journal and Mathematics Teacher Education and Development

Reviewer for MERGA and MAV annual conference proceedings

Personal website


Knowledge areas

Mathematics education

Student supervision

  • Developing Pre-Service Teachers’ Pedagogical Content Knowledge in Algebraic Reasoning through Lesson Study. PhD research by Meilasari (2014, Principal Supervisor).
  • The implementation of lesson study in mathematics: the case of Zambia. PhD research by Sibeso Likando (2014, Co-supervisor)
  • Chinese primary students’ gender differences in attitudes toward mathematics. Master of Arts research project by Gaby Wu (2015, Principal Supervisor).
  • Exploring symmetry with the MATHOMAT template. Master of Education reseach project by John Lawnton (2014, Principal Supervisor).

Conferences and seminars

PME (2005, 2006)

MERGA (2005, 2007, 2009, 2010, 2013, 2014)

ICTMA (2011)

EARCOME (2010, 2013)

CoSMED (2009)

AAMT (2013)

ICSEI (2009)

MAV (2012, 2013, 2014)

SEA-DR (2014, 2015)


Research projects

  • Widjaja, W. Xu, L., Li, J. Jobling, W. with Vale, C. (mentor)
    Enhancing primary school teachers’ professional noticing through artefact-stimulated recall. CREFI DRG Project (2015, $15,000).
  • Widjaja, W., Xu,  L., Li, J., & Jobling, W. Enhancing professional noticing of primary school teachers through artefact stimulated recall. Faculty Small Equipment Research grant. (2015, $5,000)
  • Auld, G., Loong, E.,Widjaja, W. and Williams, G. with Vale, C. and Blackmore, J. (mentors). Transition: Improved Literacy and numeracy outcomes (Successful strategies) (2015, $65,638).
  • Widjaja, W., Groves, S., Tytler, R., Robottom, I., Bragg, L. Deeakin LIVE Partnership Funding. (2014, $5,000).
  • Vale, C., Bragg, L., Herbert, S., Loong, E., Widjaja, W. Primary school teachers’ and students’ perceptions and understanding of mathematical reasoning. (2013-2014, $12,000).
  • Williams, G., Bragg, L., Herbert, S., Loong, E., Widjaja, W., Hirsch, L. Flexible Pedagogical Problemsolving For Implementing Mathematics Problemsolving. ( 2014-2016, CREFI Seeding Grant, Gaye William's and Coral Campbell's personal  research fund, $22,500).
  • Groves, S., Doig, B., Vale, C., Widjaja, W., Implementing structured problem solving through lesson study. Faculty near missed ARC funding, Deakin University. (2013, $13,000).
  • Groves, S., Doig, B., Vale, C., Widjaja, W., Implementing structured problem solving through lesson study. CREFI DRG  Deakin University. (2012, $19,700).

Research interests

Mathematical modelling, Educational design research, Design of contextualised tasks, Realistic Mathematics Mathematics, Lesson Study.

Research grants

  • Transition: Imporved Literacy and Numeracy Outcomes (Successful Strategies) funded by Department of Education and Early Childhood Development (2015).
  • Enhancing primary school teachers' professional noticing through artefact-stimulated reflection. Funded by Centre for Research in Educational Futures and Innovation (2015).
  • Mathematical Reasoning Professional Learning Research. Funded by Faculty of Arts and Education Deakin University (Jan 2013-present).
  • Implementing structured problem-solving mathematics lesson through Japanese Lesson Study. Funded by CREFI Research Development Grant (April-December 2012).
  • Building teachers' capacity in primary mathematics school-based assessment. Non-funded research project involving two primary teachers in Singapore and Indonesia. (3May2011-31 Dec 2011).
  • Integrating teachers' role in enhancing pedagogical content knowledge (PCK) of pre-serice teachers using video case study. Funded by DIKTI 2009 grant No: 060/SP2H/PP/DP2M/IV/2009. (April-December, 2009)
  • Portrait and review of mathematics teaching and learning in some PMRI schools. Funded by DIKTI 2009 grant No: 378/SP2H/PP/DP2M/VI/2009. (April- December 2009).  
  • Designing Realistic Mathematics Education lessons based on local contexts in Indonesia. Funded by Balitbang

Research groups

Mathematics Education Research Group of Australasia (MERGA)

Indonesian Mathematical Society (IndoMS)

Research page



Widjaja, W., Vale, V., Groves, S., Doig, B. (Online first 11 December 2015). Teacher professional learning through engagement with Lesson Study. Journal of Mathematics Teacher Education. DOI: 10.1007/s10857-015-9341-8.

Herbert, S., Vale, C., Bragg, L., Loong, E., Widjaja, W. (2015). Developing a framework for primary teachers' perceptions of mathematical reasoning. International Journal of Educational Research 74, 26-37.

Widjaja, W., & Dolk, M. (2015). The use of videos and classroom artefacts in professional development of teachers and teacher educators in Indonesia. In S. F. Ng (Ed.), Cases of mathematics professional development in East Asian countries (Vol. 10, pp. 199-221). Berlin, Germany: Springer.

Ng, K. E. N., Widjaja, W., Chan, E. C. M., & Seto, C. (2015). Developing Teacher Competencies Through Videos for Facilitation of Mathematical Modelling in Singapore Primary Schools. In S. F. Ng (Ed.), Cases of Mathematics Professional Development in East Asian Countries (Vol. 10, pp. 15-38). Singapore: Springer.

Bragg, L., Widjaja, W., Loong, E., Vale, C., Herbert, S. (2015). Promoting reasoning through the magic v task. Australian Primary Mathematics Classroom, vol. 20, no. 2, pp. 10-14.

Chan, C. M. E., Ng, K. E. D., Widjaja, W., & Seto, C. (2015). A case study on developing a teacher's capacity in mathematical modelling. The Mathematics Educator, 16(1), 1-31.

Widjaja, W. (2014). Lesson study: making a difference to teaching pupils with learning difficulties, by B. Norwich and J. Jones. Critical Studies in Education.

Widjaja, W. (2014). Year 3/4 children forms of justification. In J. Anderson, M. Cavanagh, A. Prescott (Eds). Proceedings of the 37th Annual Conference of MERGA. (pp. 694-697). Adelaide, SA: MERGA.

Widjaja, W. (2013). Building awareness of mathematical modelling in teacher education: A case study in Indonesia. In G. Stillman, G. Kaiser, W. Blum & J. Brown (Eds.), Teaching Mathematical Modelling: Connecting to Research and Practice, International Perspectives on the Teaching and Learning of Mathematical Modelling. (pp. 583-593). Dordrecht: Springer.

Groves, S., Doig, B., Widjaja, W., Garner, D., Palmer, K. (2013). Implementing Japanese Lesson Study: An example of teacher-researcher collaboration. The Australian Mathematics Teacher. 69(3), 10-17.

Widjaja, W. (2013). Creating teacher learning communities of inquiry through Lesson Study In V. Steinle, L. Ball & C. Bardini (Eds.), Mathematics education: Yesterday, today and tomorrow (pp. 723-726). Melbourne: MERGA.

Widjaja, W. & Vale, C. (2013). Deepening teachers' understanding of content and students' thinking: A case study of Japanese Lesson Study in Australian primary schools. In M. Inprasitha (Ed.),  Innovations and Exemplary Practices in Mathematics Education (Vol. 3, pp. 266-275). Phuket, Thailand: CfRiME.

Chan, C.M.E., Ng, K.E.D., Widjaja, W., Seto, C. (2012). Assessment of primary 5 students' mathematical modelling competencies. Journal of Science and Mathematics Education in Southeast Asia. 35(2), 146-178.

Widjaja, W. (2012). Exercising the socio-mathematical norms in classroom discourse: Insights from a case study of a Grade 6 lesson in Indonesia. The Mathematics Educator 13(2), 21-38.

Widjaja, W., Stacey, K., & Steinle, V. (2011). Locating negative decimals on the number line: Insights into the thinking of pre-service primary teachers. Journal of Mathematical Behavior, 30(1), 80-91.

Link to publications

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