There are a dazzling array of foods in modern life. This course starts from the food in life, explores the vitality in food, and understands the common processing magic hand in food - microorganisms. It develops the theme and hopes that students can use the scientific knowledge and inquiry habits they have learned. To choose the best food for yourself, and finally cultivate the aesthetics of food. Since there are many types of microorganisms, this course finally focuses on the most common and safest yeast, the most familiar fermented food - bread. Therefore, "Cultivation of Natural Yeast" and "Experience of Part of the Bread Making Process" are arranged. "Teaching related kiln principles". In addition, the visual art teacher guides students to start with the culture of eating, using all their senses, minds, and memories to share, taste, and learn the flavor of bread with their classmates, thereby exploring their own senses and learning to express their feelings. In class, they use a mobile phone microscope to observe yeast. bacteria, and depicts the structure of yeast and bread. It is a kind of self-care and awareness of external nature from the inside out, from the macroscopic view to the surrounding environment. Finally, the observation results are compiled into a "bread bag" to implement environmentally friendly life. Aesthetics connects the three major fields of art, nature, and technology, bringing students comprehensive learning and experience.