At the primary level, EVS is an integrated subject area that incorporates knowledge from the sciences (physical, chemical, and biological), social studies (history, geography, political science, and so on), and environmental education (protection and conservation).There are no prescribed textbooks for classes one and two because environmental studies are not taught at the very primary level (classes 1 and 2) as a distinct subject but the concepts which are important to know at that stage of life are taught through language, mathematics, and poems.As children see the world holistically rather than dividing it into distinct subject areas, it is important to provide learning experiences that blur the lines between subject areas. This not only helps to lighten the curriculum load but also helps children to learn more effectively.Hence, we conclude that the most appropriate reason for having no prescribed textbooks for EVS for classes I and II is that EVS is integrated with language in mathematics.