It is essential to teach students grammar instruction from beginning level for several reasons. In this article will be overviewed grammar units that are necessary to teach in primary school and what they include and why they should be covered on this stage. Furthermore, in this work will be explored what challenges teachers might face while teaching grammar for primary school learners, and how struggle with these challenges. In addition, in this article will be examined traditional and modern methods and techniques for teaching grammar in primary school. In this article will be provided opinions and findings of famous methodists of Uzbekistan and other countries.