Stable-Order
Cardinality
Order Irrelevance
Subitizing
Movement is Magnitude
One-to-one Correspondence
Conservation
Abstraction
Hierarchical Inclusion
Unitizing
Characteristics of the Numeration System:
Place Value
Base of ten
Use of Zero
Additive Property (Expanded Form)
Base Ten Development:
Counting By Ones
Counting by Groups and Singles
Counting by Tens and Ones
Equivalent Groupings