A child's ability to estimate a group of dots is just spatial reasoning skills in disguise.
April 20, 2026
Original Paper
The Approximate Number Sense is (little more than) Spatial Skills.
PsyArXiv · puvq5_v3
The Takeaway
Psychology has traditionally treated the Approximate Number System as a unique, specialized sense for quantity. Comprehensive factor analysis reveals that this number sense is actually the exact same cognitive tool used for spatial navigation and mental rotation. There is no separate math brain for estimation that operates independently of how we see physical objects in space. Young children who struggle with numbers might actually have an underlying issue with how they process visual environments. Improving a child's spatial awareness might be the most direct way to boost their natural intuition for mathematics.
From the abstract
When processing non-symbolic quantities, both numerical information (processed through the Approximate Number System; ANS) and spatial information (e.g., size, density) are simultaneously processed. While the connection between ANS tasks and spatial skills has been explored at the task level, construct-level links between the ANS and spatial remains underexplored. The aim of this study is to tease apart the structure of ANS measures and spatial skills measures in early childhood through factor a