The purpose of this research was to determine if the addition of natural loose parts, or manipulatives, to the outdoor play yard would increase creativity in the classroom. This study took place in a private Montessori school with 14 children ages 3 to 6 years old over a five-week period. Various methods were used to gather information to determine any change in creativity. Observations of creative behaviors, concentration (state of flow), and spontaneous collaboration were collected as well as drawing tests for creative thinking, and samples of creative writing and artwork. The results of the study found that the loose parts did not increase creativity in the classroom. However, the addition of the loose parts did correlate with an increase in collaboration, imaginative play and a possible increase in concentration. Suggestions for further research include extending the amount of time the study took place, and focusing on one age rather than a mixed aged grouping