Children organize the world through collections and categories
Collecting is a natural way to make sense of the world by grouping, sorting, and classifying objects by shared attributes like color, size, shape, and material. When children sort buttons, rocks, leaves, coins, or shells, they practice comparing attributes and defining sets, which are foundational skills for math reasoning and scientific observation in preschool. Research shows categorization emerges early and strengthens cognitive organization and semantic memory, helping children store and retrieve knowledge more efficiently. Families can support collecting at home by using egg cartons, trays, or paper sections to help children group similar items during everyday routines like laundry or cleanup.