Hierarchical Inclusion is the counting and quantity principle that refers to understanding that all numbers preceding a number can be or are systematically included in the value of another selected number.

For a full summary of all counting principles, read the original blog post.

[…] See this animation in video format here. […]

[…] 62 is “inside” each of the larger values. This references students prior knowledge of hierarchical inclusion from the Principles of Counting and Quantity that are also featured on Math Is Visual and on my […]