Programs Online Programs The Diploma programs (both Preschool & Primary school courses) are offered as online programs only for working teachers. These programs are designed as self-study programs. The advantage of the program is that,teachers who are working already will be able to relate the course content better with their day to day teaching. Online program enables them to finish the course at their own pace. The assignments are to be submitted online. Each teacher-trainee will be assigned a mentor who will take care of all the queries related to the course & its content. The classroom observation, which is for 50 hours, can be done in the school where the teacher is working. The examination, which is mandatory as part of the program can be taken in any of the LETTER study center.