| Summary: | Virtual instructional materials are in high demand amidst the pandemic. Many Filipino teachers were caught off guard and lacked adequate distance education tools. Though there were, the majority were dilapidated and obsolete. A logical approach, such as the ADDIE Model, is essential for developing instructional materials. Its process sequence is crucial since the design's effectiveness is measured by the results of evaluations and how the intended objectives are realized. This study aimed to develop virtual Science interactive learning materials for distance learning in accordance with the five steps of the ADDIE Model. A formal assessment was carried out on the developed materials to examine their validity in terms of Content Quality, Instructional Quality, Technical Quality, and Technical Error, and to evaluate their usability and interoperability.
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