One Stroke painting classes teach students how to load a single paint brush with multiple colors of paint in order to create shadows and highlights on an image at the same time they paint the base color. In more advanced classes, students learn how to apply the One Stroke technique to painting various objects, primarily flowers, fruit or other natural elements. Some classes also allow students to become certified to teach the One Stroke technique.
According to Donna Dewberry, one of the people responsible for popularizing One Stroke painting, this technique is especially well suited for the creation of natural scenes. Dewberry's line of One Stroke painting classes offers courses in a variety of One Stroke techniques for students with different levels of ability. Painting workshops are offered to teach students the basics of the technique as well as how to create a few simple, pre-designed paintings. Specialized classes teach students how to work with large canvases and how to apply the One Stroke technique to face and body painting.
Finally, a number of classes are dedicated to earning certification. In these classes, students perfect their technique but also learn how to teach the One Stroke style to others. Once certified, instructors can begin teaching their own classes.