Video Transcript
Narrator: In the Cognitive Development domain, the strand Emergent Mathematical Thinking includes the foundation Classification. Children from 11 through 23 months match objects that are the same. They also sort objects into two groups based on similarities and differences in one characteristic.
Example 1
Text on screen: Sorts into two groups based on one characteristic
On screen: 23-month-old Emzo and his caregiver sit on an outdoor patio. They have a tub of toy horses and cows. Emzo holds a horse in one hand and a cow in the other. The caregiver holds up a horse.
Caregiver 1: Is this a horse?
On screen: Emzo holds up his horse.
Caregiver 1: Ooh, the same, huh? Can we put them over there?
On screen: Emzo places the horses far to the side. As he turns back, the caregiver holds up a cow.
Caregiver 1: Good job. Is this a horse?
On screen: Emzo takes the cow and holds it nose-to-nose with his cow.
Emzo: No.
Caregiver 1: What is that?
Emzo: Cow. Moo.
Caregiver 1: A cow. Moo, a cow.
On screen: Emzo puts both cows down close to his side. He pulls the container up on his lap. The caregiver holds up another cow.
Caregiver 1: What’s this?
On screen: Emzo takes the remaining three horses from the container.
Emzo: (inaudible)
Caregiver 1: What are those?
Emzo: (inaudible)
On screen: He tosses the horses over toward the horses he set aside earlier. The caregiver holds up a cow.
Caregiver 1: Does that one go over there? What is this?
Emzo: Cow.
Caregiver 1: A cow. Where do the cows go?
On screen: Emzo lines the cows up in a row next to him.
Caregiver 1: Good job. Uh-oh. And you’ve got the horsies.
Example 2
Text on screen: Sorts into two groups based on one characteristic
On screen: 22-month-old Marcos stands by himself in an outdoor sand area. Beside him there is a row of four toy trucks. Nearby are two toy dinosaurs set side-by-side. Marcos is holding a dinosaur. Other children and caregivers can be heard playing nearby.
Marcos places the dinosaur on next to the two other dinosaurs. He touches each dinosaur, one at a time. He turns around and touches an orange and yellow truck. Then he stands up and gets a similar truck from a shelf.
He looks around, holding the truck, then bends down and points to the first truck. He examines the row of trucks. Still holding his truck, he stands and picks up another dinosaur from the shelf with his free hand.
Marcos puts both toys down, then holds up the dinosaur and examines it. He starts to set it down alongside the trucks, then steps forward to put it with the other dinosaurs.
He then grabs the truck from behind him and looks around. He puts the truck down with the others and stands to wave to a caregiver. The caregiver approaches with another truck.
Caregiver 2: Hi Marcos. Do you want this truck?
On screen: Marcos takes the truck from the caregiver and switches the order the trucks are in.
Example 3
Text on screen: Sorts into two groups based on one characteristic
On screen: 15-month-old Gianna is kneeling on the floor with her caregiver nearby. There are blocks and stacking rings scattered on the floor. There are also two empty boxes and a basket of blocks. One after another, Gianna picks up three stacking rings and drops them in one of the empty boxes.
Caregiver 3: You put them all in their box.
On screen: Gianna looks around and repositions herself. She then picks up a block and places it into the basket with the other blocks.
Caregiver 3: The blocks are back in the basket. Thank you.
On screen: Gianna finds another block behind the box of stacking rings, shows it to the caregiver, and places it in the basket.
Caregiver 3: You found one more? Go in the basket. Thank you, Gigi.