Depth-value Notation (base 2)
Counting and Reading Boundary Calculation: Making Patterns Simple
Join and Take Apart Units and Boundaries Addition: Sharing Space
Join Four Units; Join Five with Seven Subtraction: Making Nothing
Take One from One; Two from One; Seven from Five Multiplication: Unit Substitution
Three by Two; Five by Seven Division: Finding Patterns
Twos in Six; Fives in Thirty-Five

boundary math

numerics

circle numbers

full animation

∆ short animation

add/mult animation

links

site structure

Boundary Integers as Circles (condensed version, 4 minutes)