The research on augmented reality applications in education is still in an early stage, and there is a lack of research on the guiding principles for designing and creating content for augmented reality applications for Primary School Children Education. The purpose of this research is to identify the designing and content creation principles before developing any mobile application. Overlaying virtual content into the real world makes learning methods more interactive and immersive for students while learning any concepts using this technology. AR techniques make the learning process easy and interesting as compared to traditional methods. These methods lack focused learning and interactivity between the educational content. Primary school level for learning purposes of English grammar, numbers, science, geography, and AR Globe for knowing about different countries around the world. These applications can be played wherever and whenever a user wants without Internet connectivity, subject to the availability of a tablet or mobile device and the required target images. Our study investigates the appropriate designing and content principles before developing AR application. In existing literature, there are many designing principles like simplicity, ease of understanding, interactive design etc. are shown but there are no guidelines given which can be followed before designing and developing the content for AR applications.