In this paper, we explore applying learning goals in participatory design (PD) practice as an approach to mutual learning in a school context. The paper is based on experiences from master students in interaction design, who were instructed to define learning goals for children participating in PD activities that they organized in a school context. Based on the results of this study, we suggest a number of strategies for aligning and applying learning goals in PD in school contexts in practice: Debrief the results from the children's reflections with the teachers, Scalability in regard to time and context, Adjust to age, Collaborate with the teacher to define specific learning goals, Formulate learning gains for the teachers, and Develop support materials.