Children who engage in memorizing the Qur'aan sway their bodies to and fro while learning.

Answer

Muslim students are not imitating the Yahood in this practice. Every practice in Islam which may be common with a Yahood practice is not in emulation of them. It is a valid Islamic practice. The Islamic system of Thabah is not in imitation of the Yahood although their slaughtering system is similar to the Islamic system. The strict Islamic system of Hijaab cannot be said to be in imitation of the Yahood simply because they too, at least the very orthodox among them, observe strict Hijaab. The practice of swaying whilst memorizing the Qur'aan Shareef is valid and has no relationship with the Yahood practice.