Existentialism considers the nature of the human condition and emphasizes individual subjectivity and freedom of choice. Key themes of existentialism include: 1) Philosophy as a way of life rather than just an academic pursuit. 2) Anxiety and authenticity in freely choosing one's actions and identity. 3) Freedom and responsibility as defining human existence. Existentialist education aims to develop student consciousness of freedom and responsibility through child-centered, experiential learning focused on self-expression, choice-making, and understanding the human condition.