Lainufar, M. Mailizar, R. Johar
The Curriculum in Indonesia requires teachers to be more interactive using one of the potential learning models, namely Project-Based Learning (PjBL) and technology integration. However, the existing learning instruments with that model are still superficial and limited in number. Augmented Reality (AR) as interactive technology is able to increase learning motivation and visual-spatial skills of students. This current study mainly aims to develop learning instrument with PJBL model and GeoGebra AR for geometry topic. We conducted this development study with the Plomp model. Yet, this paper merely reported the result from the prototyping stage and assessment phase. Six students were chosen for the small group trial, while for the field test, thirty-two students and a teacher were selected, and six validators participated. To collect data, this study utilized a questionnaire, an observation log, and an interview guide. The findings showed that the learning instrument has been valid since it was built on firm theory, and the components of the instrument were consistently connected and practical. The instrument is easy, appropriate, and effective to use in the learning process. Finally, students' visual-spatial skills had been improved, and they responded positively to the learning with PjBL and GeoGebra AR. © Published under licence by IOP Publishing Ltd.
Master Program of Mathematics Education, Universitas Syiah Kuala, Banda Aceh, Indonesia; Mathematics Education Department, Universitas Syiah Kuala, Indonesia; STEM Research Center, Universitas Syiah Kuala, Banda Aceh, Indonesia; Realistic Mathematics Education Research Center, Universitas Syiah Kuala, Banda Aceh, Indonesia
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