• The Classic pattern block shapes work together to create patterns easily because all of their angles are multiples of 30°.
• The essence of pattern is repetition. The essence of pattern is repetition.The essence of pattern is repetition....
• All regularly repeating 2-dimensional patterns are based on combinations of only three symmetry operations, each of which has its own tool:
  • ROTATION of X° about a center;
  • REFLECTION across a mirror;
  • TRANSLATION along a vector;
• All regularly repeating 2-dimensional patterns are classified as:
  • CENTERED patterns, which have a center point or single mirror, and include Cyclic and Dihedral patterns.
  • FRIEZE or STRIP patterns, which are contained within a pair of parallel lines;
  • TESSELLATIONS or WALLPAPER patterns, which uniformly cover the plane.