Warm and cool colors are part of color science and are important reference indicators in daily life in terms of clothing matching and makeup. However, they are rarely mentioned in previous teaching units. Moreover, although school children often use crayons and colored pens since childhood, But the basic concepts of color are not clear enough, so we often have trouble with color matching. If schoolchildren can understand that colors give people different feelings, I believe that the use of colors in the future will be more appropriate and appropriate. Therefore, this unit is designed in the hope that children can learn to distinguish between warm and cold colors, and combined with the tour activities of the towel-based course, they can use towels to weave beautiful pictures.