Encouraging collaborative learning on a shared tablet through the split screen feature and crisscross technique

Abstract

This paper explores the use of a split screen feature on tablets to facil-itate collaborative learning among primary school students. In known research, the split screen approach has been utilized on personal computers and in large display setups for shared interactions. Still, its application in mobile devices for multi-user educational activities remains underexplored. We developed a modu-lar system called CoCo (Colocated Collaboration), which divides a tablet's screen into independent segments, allowing students to interact simultaneously on a shared device. The system supports a structured activity flow consisting of indi-vidual work, discussion, and correction phases. This study, conducted with 89 Croatian primary school students, evaluated the effectiveness of this approach in supporting collaborative learning. The results showed an increase in students' success rates, indicating improved learning outcomes at the end of the evaluated activity. Despite the overall positive results of students’ perceived level of col-laboration, the study highlighted the need for refinements in activity design to better support sustained interaction and discussion. Future research will include a more in-depth analysis of results and focus on optimizing the system to enhance collaborative educational experiences on mobile devices.