PhET Simulations and Auditory Descriptions

Map is displaying 401 markers based on 401 unique locations, and 645 sessions by 553 visitors.

Using cached Google Analytics data, which is updated periodically and is not real-time.
Note that Analytics data is intended to show usage trends and may not capture every event from every visitor.
Color intensity indicates activity level, from: Low High

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Display Activity For: City, USA, World