This document outlines a research paper titled "English Teachers' Difficulties in Writing Lesson Plans". It will include 5 chapters that analyze the challenges English teachers face when developing lesson plans through a case study of two teachers at SMAN 1 Sukadana high school from May 18-24, 2011. The researcher is interested in understanding what types of difficulties teachers encounter and strategies to address them, as developing strong lesson plans is important for teachers. The methodology will be a case study using questionnaires and interviews to collect data from a sample of two teachers out of 24 at the school.