Coursebook materials include student books, teacher books, audio/video recordings, and workbooks used to present and practice language skills in the classroom. Teachers select materials based on a needs analysis of learners' levels, interests, and language needs. When selecting materials, teachers consider whether the content is visually appealing, well-organized, culturally appropriate, at the right level, and motivating for learners. If existing materials do not meet these criteria, teachers can adapt them by extending, shortening, changing methodology or level, reordering content, or using supplementary resources. Coursebooks provide context, dialogues, tasks and exercises while teachers add warmers, instructions, role-plays and homework.