Which organization provides a network for collaboration among teaching artists across various disciplines?

The Association of Teaching Artists is the organization that specifically fosters cooperation and collaboration among teaching artists across different disciplines. This network is essential because it unites professionals from various art forms, enabling them to share resources, ideas, and best practices. Through this collaboration, teaching artists can enhance their methods of instruction and contribute to a richer educational experience for students in the arts.

The other organizations mentioned, while valuable in their own right, focus on more specific areas within music education or art forms and do not serve as a broad network for collaboration among teaching artists from multiple disciplines. For instance, the American Orff-Schulwerk Association primarily supports practitioners of the Orff approach to music education, while the Music Teachers National Association is dedicated to music educators specifically, and the National Association for Music Education focuses on advancing music education across the nation.