ENOne can basically assert that technology use in educational practice becomes an inseparable part of educational activity. Both teachers and students are increasingly using mobile technologies in teaching and learning. However, still very little is known and there is very little proof about application effectiveness of these technologies in the teaching/learning process. It is purposeful to responsibly integrate technologies into the educational process and to seek evidence of such integration. In November 2019, pilot research was carried out in two countries - Lithuania and Romania. Natural science and adjacent subject teachers participated in the research (125 - from Romania, 120 – from Lithuania). Research samples were arranged applying a random selection system. Referring to an earlier carried out preliminary research results, a research model was prepared. The research model consists of 4 main dimensions: 1) motivation to learn, 2) better understanding, 3) social learning usefulness, and 4) teaching usefulness. The model has been empirically validated and cross-validated. The prepared research instrument manifests itself in high reliability and can be successfully applied to explore the usefulness of mobile technology in the teaching/learning process. Keywords: Mobile Technology. Multidimensional Approach. Pilot Study. Science Teachers. [From the publication]