TurtleGO: Application with Cubes for Children's Spatial Ability Based on AR Technology

In this paper, we introduce a new application called TurtleGO that uses augmented reality (AR) technology, with which K-2 children can experience a geometric sense of the egocentric perspective. This application was developed with the concept of Logo-MicroWorlds, which allows children to examine and simulate their geometric ideas in a virtual world with a turtle agent. TurtleGO provides children with real-time feedback in a monitor representing the augmented turtle image on blocks based on AR technology while children are playing with actual blocks. Our application is flexible and inexpensive as it makes possible the use of various sized cubes already in possession. All the children between grades 2 through 5 improved in their ability to distinguish pair of stimuli as identical or mirror images when they used TurtleGO. However, we found that our application provides an effective and intuitive AR learning environment to lower grade elementary students, improving their spatial transformation skills since upper graders could solve the tasks easily without it.N