Final answer:
Georgia O'Keeffe's time as an art teacher in Amarillo contributed to her foundation as an artist, after which she became a significant figure in American abstraction. Her studies and experiences, along with her teaching, would form part of her evolving art style and vision.
Step-by-step explanation:
Georgia O'Keeffe's experience during her two-year period in Amarillo as an art teacher is not directly documented in the references provided. However, it is known that O'Keeffe was a significant practitioner of American abstraction. After her initial success, she moved to New York, where she met Alfred Stieglitz, who promoted her work extensively. O'Keeffe was already acknowledged as a very successful artist by the mid-1920s. Her teaching experience in Amarillo likely added to her strong foundation and understanding of art principles, which she developed under the influence of Arthur Dow's concepts of expressive art composed of harmonious lines, mass, and colors. This experience, like her other experiences, contributed to her development as an artist capable of maintaining her own vision amidst the trends of the art world.