Collaboration skills are one of the four life skills (critical thinking, creativity and innovation, collaboration, and communication) that students need to master in the 21st century. Collaborative skills include aspects of contribution, problem- solving, working effectively in a diversity of members, and managing projects. The low collaboration skills in elementary school students encourage researchers to create a project-based and entrepreneurship-oriented learning device to improve these skills. The purpose of this study is to determine the feasibility (validity, practicality, and effectiveness) of project-based entrepreneurship-oriented learning devices. The research method used is descriptive quantitative, with the 4P development design (Definition, Design, Development, Dissemination) adapted from the 4D Model by Thiagarajan. Data analysis methods used were t-test and N-Gain analysis to find out if there was an improvement after learning. The results of the analysis using the t-test showed a significant increase in pre and post-test, with post-test values better than pre- test (negative t). The results of the N-Gain analysis showed the average increase in student scores in the high category. In general, the results of the study indicate that the learning devices are feasible (valid, practical, and effective) in improving the collaboration skills of elementary school students.

Keywords : Collaborative Skills; Project-Based Learning; Entrepreneurship; Learning Devices.