Research on children's experiences with designing has emphasized cognitive processes, self-efficacy, and outcomes related to designing. However, efforts have been limited towards identifying approaches children use while designing and making decisions related to design. This study, which incorporated a qualitative analysis of children's design portfolios, explored students' decisions in planning and evaluating designs related to children's nursery rhymes. Differences in design approaches, based on teacher, task, and stage of designing, were identified in the analysis. Understanding how children approach and attempt to solve open-ended design problems may assist in improving student design experiences and pedagogical practices in all levels of education.