The utilization of new technologies in teaching and learning is always one of the main concerns of the educational system. The increasing development of technology has caused comprehensive changes, especially in education. In this regard, Augmented Reality (AR) is one of these important educational technologies. AR creates an interaction between the real world and virtual objects, which creates a bridge between traditional educational tools and the technology, and this can affect student performance. This study was conducted to investigate the effect of AR on the level of attention of first elementary students in an experimental sciences course. To achieve this goal, the focused and sustained attention of 30 female students while using the software was measured in two groups lecture method and learning using AR through an eye tracker. The results of the t-test for the two components of focused attention and sustained attention indicate the effectiveness of AR in promoting students' attention. The findings of this study have important implications for learning stakeholders about the effect of AR as an educational and interactive tool on the attention of first elementary students in the course of experimental sciences.