The decade-long project Eureka (2002 – 2012) in primary schools sought to integrate art with other subjects, especially mathematical subjects such as numbers, basic geometry, the golden ratio, and even the Mandelbrot set. The project was initiated by Gunnel Berlin, artist and pedagogue, with the performance artist Eva Dal also participating for three of those years. We worked together with students and teachers at Åsenskolan, Kungshamn, Sweden and with other primary schools in the municipality of Sotenäs. We found that an integrated study of math and arts deepened students’ understanding, creativity, knowledge, and democratic culture.