Answers are grounded in this paper and cite their sources.
Atoddler, after some experimentation, puts a square peg into a square hole. What does she know about shapes? What more will she learn in preschool and elementary school. What might she learn?
No takes yet. Share an insight, caveat, or question.
Clements et al. (2000) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: