Prof. Suhendra, M.Ed., Ph.D., is a Professor of Productive Mathematics Learning at the Faculty of Mathematics and Natural Sciences Education (FPMIPA), Universitas Pendidikan Indonesia (UPI). Since joining UPI in 1991, he has been widely recognized for his dedication to advancing mathematics education through innovative, constructive, and student-centered learning approaches. His academic journey includes a Master of Education (M.Ed.) and a Doctor of Philosophy (Ph.D.) from leading international universities, where he specialized in mathematics education and pedagogical research. Prof. Suhendra’s scholarly work focuses on productive learning, teacher professional development, and the integration of technology in mathematics instruction. Beyond his academic role, he currently serves as the Head of Public Relations at UPI, contributing to institutional development and global collaboration. As a researcher, speaker, and author, he has published extensively in national and international journals and frequently delivers keynote lectures at educational conferences. Prof. Suhendra continues to inspire educators and students alike through his vision of mathematics as a creative and meaningful discipline that fosters critical thinking, innovation, and lifelong learning.

I Wayan Widiana is an academic and professor in the field of Educational Research and Evaluation at Universitas Pendidikan Ganesha. He completed his bachelor’s degree in Physics Education at Undiksha, his master’s degree in Educational Research and Evaluation, and his doctoral degree in the same field at Universitas Negeri Jakarta. His academic career includes positions as a lecturer in the Elementary School Teacher Education Study Program, Expert Staff to the Rector, Head of the Journal and Publication Center, Head of Simkatmawa, Head of the PKM Team, Secretary of PPG, Head of the Professor and Associate Professor Acceleration Team, and Vice Dean II of the Faculty of Education. He has contributed to the development of scientific publications and is actively involved as a reviewer, assessor, and editor of national and international journals.

Shamsiah Banu Mohamad Hanefar is a passionate educator with 24 years of working experience. Her specialisation is in the field of educational psychology, and she is a strong advocate of spiritual intelligence. She is well-versed in multidisciplinary areas, including education, spiritual intelligence, holistic well-being, spiritual tourism, spiritual leadership and professional development. Currently, she is a research fellow and senior lecturer at the Faculty of Education and Liberal Arts, INTI International University, Malaysia. She has experience as an external examiner, article reviewer, program coordinator, faculty’s teaching and learning chairperson, and module developer (at both undergraduate and master’s levels). In her previous role, she was responsible for the Teacher Training Programme under the World Bank and the Bangladesh College Education Programme. She also managed Master Trainer Associates from Bangladesh. Shamsiah has conducted training sessions for individuals/educators from various parts of the world, including Thailand, Myanmar, Bangladesh, and others.