What happens when you repeat one simple shape at smaller and smaller sizes? A single hexagon looks ordinary. But nesting hexagons inside hexagons creates surprisingly complex patterns. You cut six hexagon templates from cardboard. The sizes range from 160 mm down to 5 mm. You trace the largest hexagon on graph paper. Then you add smaller hexagons at each corner of the first one. By the sixth round, a detailed design emerges from nothing but repeated hexagons. This process is called a fractal (a pattern that repeats itself at every scale).