Reframing the Most Important Special Education Policy Debate in 50 Years: How Versus Where to Educate Students With Disabilities in America's Schools.

This article examines five decades of research on how and where to educate students with disabilities (SWDs) in U.S. K-12 schools, focusing on the debate between full inclusion in general classrooms versus a continuum of specialized placements. It highlights that the Individuals with Disabilities Education Act (IDEA) mandates education in the "least restrictive environment" (LRE), which supports inclusion to the maximum extent appropriate but recognizes the need for specialized instruction for some students. The review finds that research on the impact of placement ("where" to teach) is generally weak and inconclusive due to methodological limitations, whereas evidence on instructional methods ("how" to teach), particularly intensive, individualized interventions often delivered outside general classrooms, is stronger and shows meaningful academic benefits. The article also discusses contrasting perspectives: "Abolitionists," who advocate for full inclusion and criticize the continuum model, and "Conservationists," who support multiple placement options to meet diverse needs. It concludes that placement decisions should prioritize effective instructional approaches, acknowledging that many SWDs require specialized, intensive teaching beyond the general classroom to achieve academic progress.