Assess the ability to apply Universal Design for Learning (UDL) principles to design a differentiated lesson plan for a mixed-ability 9th-grade English class. Include clear learning objectives, chosen text(s), activities that provide multiple means of engagement, representation, and action/expression, scaffolds and accommodations for ELL/IEP students, formative and summative assessments, technology supports, and a brief rationale linking each design choice to measurable outcomes and UDL guidelines.