Test candidates' ability to apply UDL's three principles to design and justify a differentiated 45–60 minute secondary-school lesson plan. Scope includes writing measurable objectives aligned to standards; selecting multiple means of engagement, representation, and action/expression; creating tiered activities, scaffolds, and accommodations for diverse learners; embedding formative and summative assessment strategies; explaining materials and technology choices for accessibility; and evaluating how decisions support equity and measurable learning outcomes.