Language is an abstract system of signs and rules that primarily serves to communicate, but it doesn't always have the same role, purpose and value system. '' (Pavličević - Franić, 2007, p.34). Language is a form of communication that is learned and developed. Man is not born with the knowledge of language. When learning a language and language activities, it is important to ensure an appropriate approach to make learning a fun yet productive and educational process. M. Wolf (2019) says that it is the flexibility of the brain that fascinates the most, the ability to transcend its original biological functions (such as sight and language) to develop completely new abilities such as writing and arithmetic. Children remember best when the problem is presented to them in a concrete, real situation. For example, if a child feels that he does not need some knowledge, it will not have the will to acquire it. On the other hand, if it can learn about the problem through practice, the knowledge will remain more lasting. For this reason, it is important to first show children the importance of reading and writing in order to create an intrinsic motivation that will encourage them to learn. Internal motivation is much more productive than external because it starts from the child itself and it's desire to master new content, while external motivation rewards the results with additional incentives. The difference is clear, with intrinsic motivation the child is rewarded with knowledge and knowledge is the ultimate goal of learning. In external motivation, knowledge is only a means by which a reward is reached. A quality teacher in children creates a will to learn and discover new things, every class is a new adventure and a new opportunity for children's productivity. To this end, the teacher strives to organize the lesson in a way that is creative and suitable for children. The research conducted for the purpose of writing this paper dealt with the study of reading habits of children of an earlier school age (3rd grade) and the extent to which reading affects the expansion of their vocabulary.