Wu-Yuin Hwang, Rio Nurtantyana, Siska Wati Dewi Purba, Uun Hariyanti, Suprapto
We developed an Authentic GeometryGo (AGG) app to help students application of geometry in authentic contexts through authentic measurements and peer assessments. The study included an experimental group (EG) using an AGG app and a control group (CG) using paper-based methods. The results showed that the EG outperformed the CG in terms of estimation. Measuring authentic geometry shapes using the app could foster students' estimation. Furthermore, meaningful peer assessments with visual representations in authentic contexts can facilitate the evaluation of peers' work and improve students' geometry understanding. Therefore, we encourage educators to use augmented reality with appropriate learning activities to sharpen students' measurement quality and visual representations by measuring real geometry shapes and applying mathematics knowledge in authentic contexts. © 2008-2011 IEEE.
National Dong Hwa University, Department of Computer Science and Information Engineering, College of Science and Engineering, Hualien, 974, Taiwan; National Central University, Graduate Institute of Network Learning Technology, Taoyuan City, 320, Taiwan; Telkom University, School of Computing, Bandung, 40257, Indonesia; Universitas Pelita Harapan, Department of Master of Educational Technology, Kota Tangerang, 15811, Indonesia; Brawijaya University, Information Systems Department, Kota Malang, 65145, Indonesia; State University Yogyakarta, Department of Electronics Engineering Education, Yogyakarta, 55281, Indonesia
