00:46
Jean -paget has four theorized stages of cognitive development.
00:54
These four stages vary in ages and development levels, obviously.
01:00
The first one goes to about age 2, from birth to age 2, is going to be the sensory motor stage.
01:08
Basically, this stage means everything is experienced through the senses.
01:13
Everything's being touched, tasted, seeing, taken in, through experimental values.
01:21
So generally that means watch your kids because infants will definitely eat everything if you let them.
01:30
The second stage or the pre -operational stage occurs up to about ages six or seven.
01:38
And the pre -operational stage is when thoughts start to develop words and images, but you're not actually able to work out the order of operations.
01:56
For instance, you might see 1 plus 1, but you don't recognize that that's 2, or that 2 minus 1 equals 1.
02:09
So you don't actually have this part yet.
02:12
All you do is see this...