Math Learning Trajectories Video: Sorting, Birth to 9 Months, Part 1
Textured Balls Woman: Bumpy. Look, baby. It's round and bumpy. [Inaudible]
Look at this ball. Oh, now you have it down low? Oh, pick it up. You got it. Now it's in your mouth. [Gasps]
Trying to put the whole thing in there. Look at this ball. It's a blue ball. This shape is round. Here. You feel that. Yep. In your mouth. Everything in your mouth. Look up. Down low. Now it's coming towards you. Here it comes. It's close. Oh, not my hand. There you go.
CloseThis video shows an infant examining the differences in texture of the toy balls his teacher offers him. This behavior reflects Goal IT-C 10 for children birth to 9 months, who begin to explore differences between objects by mouthing or shaking them.