Tatag Yuli Eko Siswono, Agung Lukito, Shofan Fiangga, Sugi Hartono
The urgency of this educational study lies in its potential to enrich practices by showcasing how teachers can foster creative thinking in mathematics through informal learning. By investigating teachers' creativity across various subjects at both elementary and secondary levels. This study aims to describe teachers' creative thinking in informal mathematics learning activities. This study uses quantitative and qualitative methods with 17 teachers of all subjects in elementary and secondary schools at Sekolah Indonesia Davao (SID) in the Philippines. Data were collected through direct observation during learning activities, questionnaires, group assignments, and documents of their learning activities. Data analysis used descriptive quantitative analysis and interactive methods for qualitative analysis, including data condensation, data display, and verification. The study results showed that teachers demonstrated creative thinking skills in completing tasks with various variations of task answers. Participants were enthusiastic and had never experienced the learning activities carried out at that time. This activity is expected to provide examples of best practices for teachers in learning situations according to their subjects and school levels. © 2025 Author(s).
Mathematics Education Study Program, Universitas Negeri Surabaya, Surabaya, Indonesia
