00:01
So this question is asking, in which of pha stages does a child become capable of understanding conservation? a, sensory motor, b, pre -operational, c, formal operations, or d, concrete operations.
00:14
All right, so this question is really getting at your understanding of two different things.
00:19
One, pha stages of cognitive development and your relative understanding of each of the four stages that are listed here.
00:27
And to your understanding of conservation.
00:33
So to start off, you know, that pha stages of cognitive development, as explained, is basically this proposal that from infancy to adolescence, cognitive development occurs in four distinct stages.
00:50
And this was studied by gene pha, and in doing so, he created this theory after observing infants and children, especially his own, his three old children.
01:03
And this basically contributed a lot to how we understand how children think and how they perceive the world around them.
01:12
So the four stages happened by sensory motor, pre -operational, concrete operations, and formal operations.
01:21
So if we were looking at the screen here, you would just have to switch formal and concrete, and then you'd have it in that order.
01:29
The way i like to remember it is that sensory motor is always first because sensory motor is characterized by basically babies because sensory motor ranges from birth to two years old.
01:41
And basically infants navigate through the world using their senses and movement, sensory motor.
01:52
And that's how they kind of like get a grasp of the world around them.
01:56
And we see this in infants who try to put things in their mouth and they're always grabbing for things.
02:04
And that's the characteristic of the century motor stage.
02:06
Next, we have pre -operational.
02:07
I think this makes sense because with pre -operational, it precedes both the operations, so pre -operational.
02:21
And the way i like to think about it in terms of cognitive development, pre -operational, is really when children are able to think about certain things and they like to pretend and they can mentally represent, as paj describes it, words and pictures, but they can't reason or they can't logic their way through a certain problem or a certain concept.
02:46
So here i think about it as they know what it is, but they only see it through one lens, hence pre -operational.
02:54
It's not yet operational.
02:57
So i think one thing that i would remember this by is just mentally represent...