Education 4.0, as the new age of education, offers a variety of technologies that can be used in a blended learning environment. One of the possibilities that has gained more and more visibility in recent years is unquestionably augmented reality. Even though Romania is still in its infancy regarding the technologization of the teaching act, the community proves to be more and more open to new initiatives. Thus, this paper has the goal to provide an easy-to-be-implemented prototype of AR application that could be used as an adjuvant to a K-12 lesson. Firstly, this study will briefly give an introduction on what augmented reality means, its evolution throughout time, as well as some advantages and disadvantages. Secondly, the paper will present an easy and cost-free way to develop a simple prototype built on the principles of augmented reality. Finally, the paper will provide an example of AR application that can be suitable for the undergraduate education system, in the field of foreign languages. Overall, the contribution of this paper to the literature consists in revealing a simple and cost-free way of how augmented reality can support the teaching act in Romania. Moreover, it offers more visibility to the subject of augmented reality in the context of K-12 education.