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UDL Three Principles

Run the UDL Three Principles Fullscreen

About This MicroSim

An interactive display of the three Universal Design for Learning (UDL) principles: Engagement (the Why), Representation (the What), and Action & Expression (the How). Each pillar shows three levels from the UDL Guidelines: Provide Options, Build, and Internalize.

Explore Mode: Hover over any pillar section to see the UDL checkpoint name, a plain-English description, and two intelligent-textbook examples.

Quiz Mode: An intelligent-textbook feature is described. Click the pillar and section that the feature most directly serves.

Learning Objective (Bloom level: Apply): Given an intelligent-textbook feature, identify which UDL principle and checkpoint it most directly serves.