The focus of my research has been to examine how the students' creativity is affected in a shortcreative project with a method inspired by problem-based learning. I have implemented this in acase-study, where I have used mostly qualitative methods. The case was created in a project with agroup of high school students. I have done observations, a survey and focus-groups with the students.The study is based on theories about creativity and problem-based learning. The study shows that the students' creativity is significantly affected by the group, wherecooperation leads to new ideas and a creative group process. Working with problem-based learninggave the students opportunities to be creative, although the time was not enough for the students togo deeper in the creativity process.The students present a composition out of their process during the project.