In primary school, pupils often use drawings to express themselves, but it is rare for these drawings to be used to evaluate educational experiences. A study in Verona, Italy used drawings to better understand the impact of Mixed Reality (MR) technology on heritage education for 132 fifth-grade students. The study proposes a new method of analysis based on the frequency of specific subjects in the drawings and Jonassen's rubrics for assessing system dynamics models. The findings suggest that this method could be a useful tool for analysis and assessment, complementing other qualitative and quantitative data analyses.