If the case is as mentioned, and the intended purpose is training students for Da‘wah work and prepare them to face an audience, then practicing this act is not Bid‘ah. (Part No. 4; Page No. 146) It is similar to the semesters in universities and institutes following certain education schedules for students and teachers to organize the study.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.