Months 11-12

Associates words to objects (e.g., when airplane is said, child may point to sky)¹⁴

Aware of actions and some consequences of actions¹⁴

Experiments with means to attain goal¹⁴

Associates properties of objects and people¹⁴

Perceives objects as separate entities to be used in play, related to time and space¹⁴

Studies objects by moving, rotating, stacking, placing and removing them from containers¹⁴

Combines actions to perform a function e.g., putting a ball into a small hole in a toy box¹⁰⁰

Object permanence¹⁴

Remembers events for longer period of time¹⁴

Imitation becomes more deliberate and precise, can be deferred^{14, 41}

Senses self as different from other things¹⁴

Uses trial-and-error to effectively solve problems¹⁴

Discriminates personalities and trusts accordingly¹⁴

May mentally process actions before acting¹⁴

Attention shifts from people to objects⁴¹

Remembers and applies strategy to new object that worked on another⁴¹

Turns objects to find functional side⁴¹

Combines and matches several objects⁴¹