patterns of visual
patterns of flow
patterns of movement
patterns of rhythm
patterns of texture
geometric patterns
waves and dunes
spots and stripes
symmetries
spirals
reflection symmetry
rotations
translations
symmetry in nature
human body
animal movement
sunflower
snowflakes
honeycomb/beehives
starfish
logarithmic spiral growth
sequence
arithmetic sequence
geometric sequence
harmonic sequence
leonardo pisano bigollo
1170-1250
Golden Rectangle
set
georg cantor
1879
unit set
empty set or null set
finite set
infinite set
cardinal number
equal set
equivalent set
universal set
joint set
disjoint set
roster/set builder method
Subset