K‐JTP: Vol. 09, No.02/Desember 2021/hal: 220 – 236. .220 http://dx.doi.org/10.31800/jtp.kw.v9n2.p220‐‐236 EFEKTIVITAS PEMBELAJARAN GEOMETRI MOLEKUL MENGGUNAKAN MOBILE VIRTUAL REALITY ( MVR) UNTUK MENINGKATKAN KEMAMPUAN VISUOSPASIAL Effectiveness of Molecular Geometry Learning Using the Mobile Virtual Reality (MVR) to Support Visuospatial Skills Ainun Nisa 1 , Kusumawati Dwiningsih 2* 12 Pendidikan Kimia, Universitas Negeri Surabaya Jl. Ketintang, Surabaya 60231, Indonesia Pos‐el:kusumawatidwiningsih@unesa.ac.id INFORMASI ARTIKEL ABSTRACT: Riwayat Artikel: Diterima : 20 Mei 2021 Direvisi : 5 Agustus 2021 Disetujui : 13 Oktober 2021 Keywords: Molecular geometry, mobile virtual reality, effectiveness, visuospatial skills. Kata kunci: Geometri molekul, mobile virtual reality, efektivitas, kemampuan visuospasial Chemistry is a branch of science that encourages various advances in various fields. However, the characteristics of chemistry which have complex concepts make it difficult for class X high school students to understand chemistry. Thus, the problem that is the focus of discussion in this study is how to overcome the low visuospatial skills of high school students in class X, so that students can understand complex concepts in chemistry. This study uses the research design and development of the 4D Thiaganrajan modified 3D Ibrahim method. This study aims to determine the effectiveness of Mobile Virtual Reality (MVR)‐based molecular geometry learning media in improving visuospatial skills. The effectiveness of the MVR‐based molecular geometry learning media is stated based on the interpretation of the N‐Gain score. The results showed an increase in the percentage of correct answers on the posttest by 32.15% with a significance level ranging from 0.57‐1 in the medium to high category. In this regard, the use of MVR‐based molecular geometry learning media is said to be effective because it can improve studentsʹ visuospatial skills. That is, MVR‐based molecular geometry learning media can help students to comprehensively represent molecular geometry sub‐materials. Jurnal Teknologi Pendidikan Vol: 09/02 Desember 2021 Online ISSN: 2622‐4283, Print ISSN: 2338‐9184