In institutions of early and preschool upbringing and education, the development of mother and foreign languages takes place with the proper support of educators, providing a spatial and material environment for learning, creating situations that contribute to the interaction of children with each other and the opportunity to use a foreign language in everyday speech. Various activities include approaches that introduce children to the use of their native and foreign languages, the use of technology in the approach and the encouragement of bilingualism. In the spatial and material environment, incentives are planned for children to notice bilingualism, they use materials that develop awareness of bilingualism. The use of digital tools is also encouraged, which in a modern way provide children with the opportunity to develop competences in their native and foreign languages. The aim of this qualitative research is to investigate in depth what activities educators use in working with children in order for children to develop competences in their native and foreign languages and educators' beliefs about the importance of developing children's competences in their native and foreign languages. The importance of developing competences in the mother tongue and in a foreign language is the basis of the development of global competences in today's modern world.