Milestoneunknown· 2y–2.3y

Inserts 2 shapes in board

Inserts 2 shapes in board

Unknown

What the research says

Framework evidence being indexed.

Full quotes, source languages, and document links coming soon as we finish the source-evidence indexing pass.

Normative evidence

1 source back this milestone. The bars below show the age range each source covers.

This milestone2y–2.3yWHO GSED0mo–3y012243648607284months
Milestone windowNormative study
The coral bar shows this milestone's typical age window. The bars below show the age coverage of each backing source.
WHO GSED →

What mastery looks like

Not yet

Cannot yet inserts 2 shapes in board

  • No observable behavior matching this item
Emerging

Beginning to show inserts 2 shapes in board with direct support

  • Requires significant prompting or physical assistance
Developing

Demonstrates inserts 2 shapes in board in structured observation

  • Performs with mild support
  • Inconsistent across contexts
Secure

Consistently passes item across contexts

  • Reliably demonstrates without prompting
Reflexive

Masters item; demonstrates generalization

  • Applies skill spontaneously in novel situations

Activities for this (1)

Thinking20mo–2.7y

Shape Sorter Challenge

Child works through three progressively harder spatial tasks: tracking a hidden object under swapping cups (displaced object permanence), inserting shapes into a board including with the board rotated (spatial problem-solving), and identifying shapes and sizes by pointing. Covers eight cognitive/problem_solving milestones from 21–40mo.

Formal assessments

No matching assessment items indexed yet.