The teaching materials in the form of video Education for modern physics lessons using problem-based learning (PBL) assisted PhET Online Learning and accessible via smartphones to support online learning are developed. Learning modern physics during the COVID-19 pandemic requires the right solution. Online learning is the right solution. Making video Education related to the topic of modern physics has become a need. The ADDIE method is used to develop video Education. The need for learning materials on modern physics was carried out with 39 students through questionnaires. 83% of respondents said that learning materials in video Education were needed for the topic of Modern Physics, and 17% of respondents said it was needed. The video is designed based on a problem-based learning method using the PhET website as an aid. Problem-based learning is organized in the following order: basic concepts, problem definition, independent learning, knowledge exchange, and evaluation. Learning materials in the form of produced videos can be accessed through smart devices (smartphones) and become a source of learning in the online learning process. PhET’s website is used as a tool to develop video ideas. Thirty-seven videos have been developed.
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