The geometric shapes seen in the body movements in the very popular Deuda Naach (Naach means dance in Nepali language) of the Karnali region of Nepal and the arguments used in the Deuda song show the experimental, logical, and creativity of mathematics. The major concern of this article is to explorethe use of mathematics on Deuda Naach in the Karnaliregion and it can be used in the teaching-learning process in mathematics class. A qualitative research design was used to collect the information and interpret it. Specifically, Deuda Naach improves the mathematics skills, logical skills, creativity, and critical thinking of students. Also, it enhances the motor skills, socioemotional level, and motivation of students. Deuda players (players refer to the dancers dancing in Deuda songs) make different geometrical shapes according to the different rhythms of Deuda songs. The body movement and the steps of the foots of kheladi (players/dancer) are more interesting and meaningful for geometry teaching. On the other hand, singing Deuda songs along with DeudaNaachmakes it more interesting and mathematicallylogical as mathematical and geometrical references are used in songs.

Keywords : Body movement, geometrical shapes, rhythm, synchronized, kinesthetic