STM Article Repository

Various problems in learning geometry and mastering geometry are faced by students at the school level and students in universities. The difficulty of learners in learning geometry can be overcome by providing proper scaffolding. The purpose of this study was to find scaffolding guidelines in the form of learning trajectories to improve students' geometric thinking levels. This qualitative research was conducted at the undergraduate student level, with a total of 527 students. The results showed that scaffolding guidelines gradually and precisely can help students go through the learning trajectory well and reach the optimal level of geometric thinking. Scaffolding guidelines in the form of learning trajectory to improve students' geometric thinking level starting from explanation and review followed by developing conceptual thinking. The development of conceptual thinking requires strategies in the form of developing representation tools, making relationships, and generating conceptual learning.