Gerhard Richter's book, "Patterns: Divided, Mirrored, Repeated" is a digital analysis of his 1990 painting, Abstract Painting (714-4). "To generate the images in the 488-page book, Mr. Richter took one of his 1990 abstract paintings and digitally dissected it.
First he cut it into two separate strips, mirrored them and repeated them across the length of the page to produce two hallucinogenic waves of abstraction. Then he cut the painting into four strips and followed the same process, repeating each mirrored strip so that each of the four final resulting images are the same length. Next came divisions of eight, 16, 32, 64, 128, 256, 512, 1,024, 2,048 and 4,096. Works from that last division are simply straight horizontal lines of color, each one generated by minuscule cuts of the painting." (http://galleristny.com/2012/08/gerhard-richters-patterns-book/)
On the first page, you will see an example of one of Richter's paintings, then the same painting divided and mirrored, and finally divided and mirrored twice. Beneath you can see an example in black and white, because the zebra stripes are easier to see the divisions if you are printing in black and white.
On the second print out, students can draw their own design/image in the first box, then divide it in half vertically with a ruler, then copy that half on tracing paper, then flip and trace onto the other half (the mirror image), Repeat this twice for the last box. It is a great use of visual math, division and multiplication through art.
Note: Use of any copyrighted images, artists' photos or artwork is for students enhancement of their Art History and appreciation of Art, in accordance with Fair Use in Education.
If you have any questions, please contact me. And, If you are unfamiliar with Open-Ended art activities, please download my free "Open-Ended Art is..."