Analysis of Vowel Pronunciation Errors of Grade IX Students of MTs Harapan Jasa Langkat

This research aims to observe pronunciation errors and vowels of Grade IX students MTs Harapan Jasa Makmur. Based on the observation, writer noted that had difficulty differentiating English vowels. The type this was a qualitative method, which is descriptive tends use analysis it in form words instead numbers. In study, main data collection techniques were participant in-depth interviews, documentation studies, combination three or triangulation. author chose class containing 7 be sampled his research. authors ran several tests they spoke recorded each word. after our research, turns out there still many who can't pronounce enough. Around 50% are lacking teacher's solution by giving repetition repeating material has been studied, especially pronunciation.
 Key Words: Vowel Sound, Pronunciation Errors