This lesson explores the connection between fashion, culture and sustainability through the topic of Ao Dai Fabric Printing. Students will learn about the differences between natural and synthetic dyes, as well as the impact of the dyeing process on the environment and human health. Through experiments with dyeing fabrics using natural materials, students are encouraged to apply design thinking to create sustainable clothing ideas that reflect Vietnamese identity. The topic also helps students understand the cultural value of Ao Dai and the role of fashion in promoting environmentally responsible lifestyles. This is an opportunity for students to learn knowledge while developing collaboration, creativity and presentation skills.