The arts can be used to teach, not just as activities that enhance learning, but also as the primary medium through which students process, acquire, and represent knowledge. This means the arts can function as a language. If we accept this metaphor, and we truly want students to be fluent in the artistic languages, then the arts can be taught in the same constructive, sequential way language is taught, where the rules of the system are explicitly learned and fluency is acquired through regular application within a meaningful context. This article provides a framework for the implementation of effective arts integration in line with second language learning: "Arts as a Second Language". In doing so, it addresses two common problems in arts education: when arts integration is disconnected from artistic development, and when discipline-based arts education is disconnected from other learning. Nine principles for teaching with an "Arts as a Second Language" policy are proposed. Ultimately, it is a call for pedagogical reform that enables equitable access for all students to learn in, about, and through the arts with school-wide policy that scaffolds artistic learning across the grades, embedded in meaningful contexts.