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PhET Interactive Simulations ( https://phet.colorado.edu), a project of the University of Colorado Boulder, provides fun, free, interactive, research-based science and mathematics simulations for use across, primary, secondary, and higher education levels. We extensively test and evaluate each simulation to ensure educational effectiveness. All simulations are open source and free to all students and teachers. In this course, you will learn strategies for how to use PhET in circumstances where you are presenting a simulation in front of the whole class using a projector, interactive whiteboard, or while sharing your screen online. This course is the second in the specialization 鈥淎ctive Learning in STEM with PhET Interactive Simulations,鈥� which includes 4 courses in total. To finish this course, you need to complete two of three possible assignments with Peer Review: 1) Whole Class Inquiry, 2) Interactive Lecture Demonstrations, 3) Concept Questions. This course is also available in Spanish as 鈥淐lase Entera con PhET para la Educaci贸n STEM鈥� and Portuguese as "A Turma Toda com聽Simula莽玫es聽PhET para Educa莽茫o STEM".