1. Value theory examines how and why humans value various things such as people, ideas, and objects. It involves understanding concepts like good and evil.
2. There are different approaches to value theory across fields like philosophy, economics, sociology, and ecology. In ecology, values are separated into donor-type and receiver-type. Sociology examines how personal values held by communities can change under different conditions.
3. Effective value education is needed in modern times to inculcate desirable moral, social, and cultural values in students and address issues like violence, immorality, and erosion of traditions. It should be an integral part of the education system.