Get your students excited about line, pattern, movement, and visual perception with this engaging Optical Illusions / Op Art Project designed for middle school art classrooms. In this scaffolded 2-week unit (4 Lessons | 45-50 minutes each), students explore how artists use repetition, spacing, contrast, and geometric design to “trick the eye” through hands-on experiments, sketchbook activities, and a large-scale final artwork. Inspired by the work of Bridget Riley and classic Op Art techniques,