A main source for the ages
How counting represents number: What children must learn and when they learn it
Barbara Wiseheart Sarnecka, Susan E. Carey · 2008 · Cognition
- Children
- About 70 children
- Where
- The United States
- Ages
- About 3 to 4 years
- How
- Researchers asked children to give a puppet a number of toys
- What it found
- Almost all these children could say the numbers to ten. About half understood how counting tells you how many, and children who knew up to "three" were about 3½ on average.
- Limits
- A small group from one country.