This document discusses the selection and adaptation of materials for teaching listening and speaking skills in an ESL classroom. It outlines principles for selecting materials, such as ensuring materials match learning objectives and student ability levels. Criteria are provided for evaluating materials, including whether they suit learning approaches, include appropriate language content, and support skill development. The document also discusses principles for adapting materials, such as making dialogues communicative and relevant. Teachers are advised to supplement textbooks with authentic materials as needed. Adaptation of materials can occur at the macro, unit, and activity levels.