The musical "The Sound of Music", which was set against the backdrop of World War II, has many popular songs that have been recited to this day. Some are playful, some are tragic, and some are sentimental. There is a simple and catchy song in it that is very suitable. After discussion, the primary school students used the song "Do-Re-Mi" as the main theme of the class, learned to sing and became proficient in English, and made stop-motion animations during art class.