The thesis deals with creation of mosaic in elementary school. The thesis is divided into two parts: theoretical and practical. At the very beginning of the thesis, the mosaic is conceptually defined. Information on materials for production, types of mosaics and specifics of art technique are presented. The following chapter describes the history of ancient culture mosaics, describes some of the famous mosaics, and mentions the findings of ancient mosaics in the territory of Croatia. The aim of the thesis was to create own mosaic, and then to investigate how students in elementary school will manage to express themselves with stones and other materials in new and unknown art technique. The practical part of the thesis first describes the preparation of materials and base and the creation of one's own mosaic. A photograph of the self-made mosaic is attached. In the next sub-chapter are preparations for conducted classes, because in order to achieve the goal, two block classes of Art culture were carried out in 3rd grade. The first block class was dedicated to getting to know the new art technique, careful analysis of motifs and sketching. The second class was dedicated to creating mosaics. Students were making the mosaic in pairs. Each class had specifically determined artistic problems. After the conducted classes, student artworks were analyzed. Analyzes of student artworks are the next and at the same time the last subchapter’s content of this thesis. Two drawings (sketches) and five mosaics were analysed. Based on the results obtained, in this case student works, most students did an excellent job in applying, for them new, fine art technique (mosaic). All of the students solved the given art problem. They generally successfully positioned the given motif within the form of the assigned wooden frame. They presented stylised motif compared to the previously drawn sketch, but this is attributed to the specificity of the art technique. The students mostly compactly arranged the material and works contain small amounts of fugue. They showed flexibility in terms of material usage and they elaborated the specifics of the given motif with mosaic lines. The students mastered the art technique and expressive possibilities of the mosaic technique.