This document outlines the aims and content of a classroom observation unit. It introduces classroom observation, discusses what constitutes effective English language teaching, and explains the reasons for observing real classrooms. Trainees are provided preliminary questions on observation topics and tools. An observation checklist is included to guide trainees in observing lessons, teaching materials, classroom management, student learning and involvement, and the teacher's English abilities. The document concludes by discussing principles for conducting observations and how to structure an observation report. The overall aim is to prepare trainees to observe classrooms and evaluate teaching effectively.