There are 6 main themes and 4 sub-theme of E.V.S Important Points The reason behind the EVS curriculum is based on different themes-to develop curiosityto make learning nurture curiosity and creativity acquire cognitive skillto teach self-evaluationto develop a connected and interrelated understandingto make content more lively for students Hence we conclude that the EVS curriculum is based on themes because themes allow a connected and inter-related understanding of the environment of students.Additional InformationStudents can learn EVS easily is not the reason behind the EVS curriculum based on themes.EVS can be learned by the students through their involvement in the teaching-learning process but the teaching-learning process is not enough to learn EVS, EVS can be learned from themes and learning by doing.Teachers can facilitate students' learning easily but themes based learning makes children aware of all areas.