Final answer:
Chunking is a method where children group items together to form easier-to-remember chunks of information, which is distinct from association, rehearsal, and elaboration strategies.
Step-by-step explanation:
The process elementary age children might use by grouping items together to aid in memory is known as chunking. This method involves organizing information into manageable units or chunks, which makes it easier to remember larger pieces of information. Chunking is useful for recalling sequences like phone numbers or dates by breaking them down into smaller, more digestible portions. This contrasts with other learning strategies like association, where our minds naturally connect events that occur together; rehearsal, where information is repeated to transfer it from short-term to long-term memory; and elaboration, where new information is linked to existing knowledge to deepen memory.