Mathematics
Counting & Cardinality
Conceptual
4–6 yrs
One-to-one counting
一一对应计数
Description
One-to-one correspondence when counting objects: each object is paired with exactly one number name
Mastery Evidence
- Point to or touch each object exactly once while saying number names
- Do not skip objects or double-count when counting a set
- Recognise an error when someone counts an object twice
Assessment Prompt
If your child is counting a pile of grapes, do they touch or point to each one exactly once as they say each number — without skipping any or counting the same one twice?
Prerequisites 0
No prerequisites (entry-level topic)
