it as one of the Core Subjects. No Child Left Behind legislation also emphasizes accountability through assessment (often taking the form of the standardized test.) While no standardized assessment has been mandated in any of the arts, the need for academic accountability in the arts, as well as in other academic subject areas, has led to increased research on and advocacy of arts integration and its impact on student learning. Currently, Common Core and close adaptions of it are changing the way schools approach learning. Common Core's approach to art integration is that it enhances education by making learning interesting and fun. With Common Core becoming the norm for many school districts through the United States, teachers are integrating art into the classroom now more than ever. The rise of popularity in art integration has increased the amount of resources available to include the classroom, making it easier than ever to use art integration in the classroom.— Arts integration research and advocacy Arts advocacy discourse currently presents two main opposing views in support of arts in education. The first points to economic grounds that art teaches "21st-century skills" like collaboration and innovation, which are necessary only as a means to breed productivity for the growth of the market. The second, alternative approach focuses instead on the philosophical value of creative inquiry that art instills in students, arguing lifelong development with no end in mind as a necessary habit borne out of an arts education. Tension between the utilitarian, workplace-focused view and the educational, growth-centered framework on advocacy continues to shape and reshape the arts education universe as revisions to the National Core Arts Standards reflect fluctuations in advocacy rhetoric. Key players The impetus for the arts integration is a growing body of research that demonstrates how learners experience success when taught why and how to use music, visual art, drama/dance, theatre and the literary arts to both express and understand ideas, thoughts and feelings. Critical Links, a compendium published by the Arts Education Partnership (AEP), includes 62 studies which examine the relationship between arts learning, academic achievement, and social development of students. Highlights include studies which explore the use of drama to increase students' reading comprehension and studies which examine the relationship between music and math concepts. The Arts Education Partnership has also published The Third Space, which profiles ten arts-integrated schools across the United States. Another American organization conducting