OSAT OK128 study materials
OSAT OK128 study resources

OSAT OK128: Planning, delivery, and differentiation for diverse learners

OSAT OK128 · Work through your exam, one topic at a time.

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Planning, delivery, and differentiation for diverse learners

This domain tests planning and delivery for diverse learners. Items address universal design for learning, multi-tiered systems of support (MTSS), differentiation, classroom management, and legal accommodations. You must plan from high expectations and remove barriers without lowering the learning target.

Core rules and concepts

  • UDL: provide multiple means of engagement, representation, and action and expression.
  • Differentiate content, process, product, and environment based on readiness, interests, and learning profile.
  • Distinguish accommodation (changes how a student accesses or demonstrates learning; expectation unchanged) from modification (changes the expectation or content).
  • Use IEP and Section 504 requirements as the floor, not the ceiling; implement documented services with fidelity.
  • Support English learners with language objectives, visuals, sentence frames, and accessible background knowledge.
  • Use flexible grouping and scaffolds that are gradually removed.

Worked example

A lesson asks students to explain a scientific process. A student with dyslexia receives an audio version and may record the explanation (accommodations). An English learner receives a word bank and sentence frames (scaffolds). Neither student is excused from explaining the process; a modification would be requiring only a labeled diagram. The teacher plans both supports in advance and assesses the same core objective.

Traps that cost marks

  • Calling a modification an accommodation, or lowering rigor to “help.”
  • Writing separate plans for each learner instead of designing accessible instruction first.
  • Using scaffolds permanently so students never practice independently.
  • Treating behavior as defiance rather than analyzing function and context.