0:22
Jetlag in Switzerland
munakatay
Shared 13 years ago
6.1K views
3:50
A typical child on Piaget's conservation tasks
12M views
0:13
Giggling
3.8K views
2:00
A typical child sorting cards (shorter version)
Shared 14 years ago
39K views
2:14
A Typical 10-month-old on Piaget's A-not-B task
Shared 15 years ago
338K views
6:11
A Typical 3-year-old Sorting cards
274K views
munakatay
munakatay
