In an attempt to connect theory and practice with regard to research on creativity and visual arts, this study aims to explore how visual materials created by children can help determine qualitative parameters in the process of observing creative activity. These materials are the result of a series of workshops designed by the authors, artists, and professors in a faculty of teacher training carried out with pupils from public second-cycle preschools and elementary schools. Having developed a data collection strategy based on participant observation, the materials are grouped into three interrelated parameters: movement, language, and transformation-aesthetics. These parameters are designed as a flexible observation tool, which allows for every researcher to implement it, by contributing to the development of new research in various classroom contexts.