Instructional breakdowns are rarely random. Many barriers to learning, such as language complexity, cognitive load, representation, insufficient background knowledge, and executive functioning demands, are predictable at the planning stage. This session introduces five universal barriers that impact access and engagement across content areas. Participants will explore why these barriers disproportionately affect students prioritized under the Yazzie-Martinez decision and how proactive lesson design can improve access and engagement for all learners. By reframing accommodations as proactive design decisions rather than reactive fixes, educators will learn a simple planning process to name the task, identify barriers, and intentionally design barrier removal. Practical examples across math, science, social studies, and ELA will demonstrate how this planning lens supports equitable access, strengthens inclusion, and reduces teacher workload.