This activity explores when children come to understand that the amount of things represented in a set are associated with a particular number word – a concept known as the “cardinal number principle”.
Presentation Type: Experiment
Age group(s): Children (4-10)
Time: 10 min
Scientific Topic(s): Psychology; Developmental Science
Supplies in Library Kit:
- 1 toy house
- 6 plastic frogs
- Numerosity Study Instructions
Additional learning resources:
This kit comes from the Living Laboratory and was developed at the Discovery Center at the Museum of Science, Boston. Click here to learn more about the Living Laboratory!