Abstract. Interactive multimedia is needed to improve student's understanding of certain material. The purpose of this study is to analyze the validity of interactive multimedia on ionic bonding material. The type of research used in this study is 4P research model (Define, Design, Development, and Dissaminate) but in this study only limited on Development step which adapted from Ibrahim (2014). The validity results showed that: (1) The content validity and construct validity obtained highly valid criteria with average percentage range gradually 90% and 91,04%. From the results, it can be conclude that the developed media was declared valid to be used as interactive multimedia on ionic bond materials.

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The implementation of technology in the era of Society 5.0 runs massively in the world of education. One of them is in the form of augmented reality (AR) learning media. AR technology that can visualize abstract chemical topics in line with the concept of tetrahedral chemical representation. Therefore, this study aims to design and test the effectiveness of AR learning media based on tetrahedral chemical representation. This study used research and development methods with ADDIE (analysis, design, development, implementation, and evaluation) model. The topic of chemical equilibrium chemistry was chosen in this study to develop AR media. This research was conducted in three representative schools in Surakarta, Central Java, Indonesia. A total of 168 students from three representative schools (66 male and 102 female) participated as subjects in the Implementation stage. In addition, a multiple-choice instrument with 24 parallel questions on the pre- and post-test was used to determine the effect of the developed media on the experimental and control classes. The results showed that the design of AR learning media based on tetrahedral chemical representations was successfully developed and proved effective in improving learning outcomes. Student response sheets are given after using the media to find user experience regarding the strength and weaknesses of AR media.