This Op Art lesson is based on positive and negative space, organic shapes, and contour and parallel lines. (The Op Art Presentation has the vocabulary for this lesson.) All types of students find success with this lesson. Great lesson for Bridget Riley or Victor Vasarely. Op Art is a great arts integration or STEAM project for math and art. An extension activity based on the National Art Standard "create" has been added. Could be used for advanced students, or students who finish early.
STEAM Art Teacher
Note- I didn't choose a teaching duration because it depends on how long your class periods are, how much time you spend on the history of Op Art, and other variables.