This article summarizes a study exploring key aspects of teaching grammar to elementary and intermediate English language learners. The research investigates effective methodologies and approaches for presenting and practicing grammatical concepts at these levels. It examines various techniques, including inductive and deductive approaches, communicative activities, and the use of authentic materials, analyzing their impact on students' grammatical accuracy and fluency. The study aims to identify best practices for grammar instruction that promote both understanding and practical application for learners at these proficiency levels.