Pattern making is used as the source of math-art integration in this video demonstration of a second-grade lesson. The lesson teaches the definitions of the different shapes and ends with students using these shapes to make art patterns.
Integrating the Arts Across the Content Areas explains why and how to integrate art into all core curricular areas. It also touches upon using art in curriculum areas as a way to engage and motivate students in their learning. Concrete activities for all areas are also provided.
As this author explains, there is actually a natural connection between the math and art, and the integration allows for students to understand both subjects on a deeper level. The article gives several creative lesson ideas.