For more information, see these articles:
- Early Childhood Maths Group. “Spatial Reasoning in Early Childhood.” https://earlymaths.org/spatial-reasoning-toolkit/
- Development and Research in Early Math Education (DREME) Network. “Spatial Relations.” https://prek-math-te.stanford.edu/spatial-relations
- Toru Ishikawa & Nora S. Newcombe. “Why spatial is special in education, learning and everyday activities.” Cognitive Research: Principles and Implications. Vol. 6, article #20 (2021). https://link.springer.com/article/10.1186/s41235-021-00274-5