This document discusses the role of teaching materials in language classrooms and their connection to ideology. It argues that teaching materials can either help students develop critical thinking or reinforce misconceptions, as they regulate how language is used and produced in educational contexts. The development of curriculum depends on context and individuals, and pedagogical choices have ideological implications for learners. Language planning aims to promote critical thinking, so teachers must consider the implicit values and assumptions presented to students. Teaching materials are ideological constructions that can shape students' and teachers' perceptions of the world, so they should allow diverse viewpoints and critical analysis of discourses around culture, politics and society.