Currently, the transformation industry 4.0 was going thoroughly, so that education must also transform to prepare students reaching standards technology industry. Augmented Reality (AR) is one of the major technological revolution. The purpose of this research is to develop a media-based 3Dmetric AR through Hypothetical Learning Trajectory, making students more easily develop their spatial abilities. The research method used is Design research in instructional materials development theorist based problems. The results of this research are the prototype of the 3Dmetric media through HLT right used to develop the ability of students in the spatial dimensions of rotation, constructive space, reconstruction, visualization, and orientation. By using the media 3Dmetric, students can perform spatial geometry activity hypothesis 6. 3DMetric media through HLT is a constructivist and meets AR design principles, i.e. giving challenge, give fantasy, and look at the part that is not visible to the user.
Developing 3Dmetric Media Prototype through a Hypothetical Learning Trajector to Train Students Spatial Skill