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It's basically based on the followings:

Multiple Means of Engagement (Why)

Multiple Means of Representation (What)

Multiple Means of Action and Expression (How)

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Reference: https://www.google.co.uk/search?q=Creative+UDL&rlz=1C1CHBD_enPK811PK811&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi9z7OGppHgAhUSNBQKHVdOCu4Q_AUIDigB&biw=1422&bih=644#imgrc=KMAvIoG4D7WI7M:

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UDL also help teacher/facilitator to find such supporting material which help student to learn fast and to understand the things easily.

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It help mentor/teacher to develop lesson plans for all type of learners especially the ones who need special attention.

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Universal Design for Learning in short UDL is the way/channel to rationalize the learning and teaching that facilitate all the learners will equal opportunities.