Today's generations of students differ from those of the past because they grow up in an environment of digital technology, and that's why they are looking for a different teaching approach. In the past, books were the only source of learning and searching for information for students, but today the book has been replaced by the Internet. Teachers should be aware that today's children need greater motivation to learn and should adjust the teaching dynamics. Teaching resources and aids are an indispensable part of teaching and without them the teaching process could not function. Today's modern teaching resources and aids have helped teachers a lot in the implementation of the teaching process, by making teaching easier for students and making it more interesting and dynamic. The thesis discuss Application of modern teaching resources and aids in Croatian language teaching in the younger grades of primary school tried to examine how much teachers use modern teaching resources and aids in the teaching of the Croatian language, how much they use and how well they are educated in the use of digital resources and aids, how much their classrooms equipped with modern teaching resources and aids and, according to the teacher's assessment, how interested students are in using modern teaching resources and aids. The thesis discuss describes the teaching resources and aids that were once used in classes, as well as those that are contemporary and are used today. Research and research results are also presented. The research was conducted on a sample of 64 respondents, using a quantitative survey method. The results of the research showed that teachers make sufficient use of modern teaching resources and aids, that they are sufficiently educated to use them. They also showed that their classrooms are not sufficiently equipped with modern teaching resources and aids, but that students are more motivated and interested in lessons when using modern teaching resources and aids.