Polyphony, often used to describe a type of composition in early European music, is also practiced in other parts of the world, not only for aesthetic enjoyment but also to strengthen a society's cohesiveness. Examples of such musical traditions are found in sub-Saharan Africa and many mountainous regions of Europe, where group singing or music-making is part of the communal lifestyle. However, polyphony in Asian music, especially in East Asia, is rarely discussed. This article introduces two polyphonic singing traditions in East Asia: in the Wa people of southwest China and the Thao people of Taiwan. Members of these groups frequently use polyphonic techniques such as canonic imitation, antiphonal singing, melodic ostinato, or drone to accompany many sociocultural events. This article provides guidelines and teaching strategies for music educators to implement the interdisciplinary lessons in their classroom.