Since 2012, a research project has been conducted at the Research Laboratory on Primary Mathematics within the Department of Education at Roma Tre University, investigating the teaching and learning of mathematics in preschool and primary education through the integration of dance, music, visual arts, and picture books. The research focuses on dynamic aspects of elementary mathematics—such as iteration, ratio, motion along the number line, and the generation of lines and solids—and their connection to aesthetic experience. The program includes classroom activities for children and 16-hour professional development workshops for teachers. We propose a 90-minute session that explores the concept of the line as a trajectory through movement, drawing, and dialogue. Participants will be invited to navigate between their adult perspective and a child’s experience, in order to examine how embodied, artistic practices can support the development of geometric reasoning and enhance mathematical awareness and enjoyment.