ABSTRACT Holid Mawardi, 2014, The Correlation of Grammar Understanding In The Students’ Writing Skill At The Tenth Grade Students of MA Al-Ula Ambat Tlanakan Pamekasan. Thesis, Tarbiyah Department, English Teaching Learning Program (TBI), The State of Islamic College (STAIN) Pamekasan. Advisor: Hj. S. Sumihatul Ummah MS, M.Pd Key terms: Grammar Understanding, Writing Skill Language h…