Postmodernism rejects the central ideas of modernism in education such as rationality and objectivity. It emphasizes subjectivity, creativity, and individual differences. Postmodern philosophers like Derrida, Foucault, and Heidegger believe knowledge is constructed rather than discovered, and truth is relative rather than absolute. In education, this translates to a focus on open-ended problem solving rather than fact transmission, collaboration over domination, and facilitating self-guided learning instead of authority-based teaching.