1. OP ART A lesson in optical illusion artwork

2. Objectives/Learning Targets I can identify optical illusion artwork and artists such as Bridget Riley I can discuss the science behind op art I can create my own op art on a 3D cube based on Bridget Riley’s work

3. Essential Questions How do op artists manipulate space to create the illusion of movement? What are the different categories of optical illusions? Who are the artists working with optical illusions today? How does our physiology work with art to create illusions?

4. Why is it moving?

5. Akiyoshi Kitaoka : Motion and Time

6. Motion and Time Illusion These illusions depend on eye movement to be effective Notice when you FOCUS on one it stops moving but the others around it continue to move! http://www.michaelbach.de/ot/mot_rotsnake /index.html http://www.michaelbach.de/ot/mot_rotsnake /index.html

7. What does this art do?

8. CONTRAST ILLUSION These illusions depend on how the center of the eye reads the stark contrast of dark and light. http://www.michaelbach.de/ot/lum_herGrid/i ndex.html http://www.michaelbach.de/ot/lum_herGrid/i ndex.html

9. Angle Illusion These illusions depend on angles projected through lines http://www.michaelbach.de/ot/ang- hering/index.html http://www.michaelbach.de/ot/ang- hering/index.html

10. Bridget Riley born 24 April 1931 in London, England Art depended on CONTRAST GEOMETRY, and REPETITION in order to create a sense of movement https://www.youtube.com/ watch?v=_G9eGzxQq2U https://www.youtube.com/ watch?v=_G9eGzxQq2U

11. Catarat

12. Blaze 4, 1963

13. Demo https://www.youtube.com/watch?v=Mkqzgu5 jVmc https://www.youtube.com/watch?v=Mkqzgu5 jVmc https://www.youtube.com/watch?v=NCOrRO nV588 https://www.youtube.com/watch?v=NCOrRO nV588

14. Create an Op Art Cube

15. COMPLIMENTARY COLORS

16. Choice… 1 large paper OP art with color Cube with 5 sides in BLACK AND WHITE Cube with 5 sides in TWO CONTRASTING COLORS