Your students will "LOVE" these Op Art Hearts, and you can sneak in some lessons about warm and cool colors. They will also learn about how shapes can create illusory contours and how lines can be used to make a heart look 3D.:
Element of Art: Line Principle of Art: Pattern Explain Overlapping
"Fritz Müller Perlwein" by Timo Thurner
Op Art Stars & Stripes - Great art project for President's Day, Veteran's Day, Election Day, and 4th of July!
the classics of perception phenomena | victor vasarely Mehr
ART LESSON: OP ART USING POSITIVE & NEGATIVE SHAPES - http://TeachersPayTeachers.com
Op art - Marco Braun
#drawing- 3d hole illusion 03
Op Art Hearts Color Study by Expressive Monkey. See some examples of how you can use this simple Op Art lesson to teach color theory.