Glynnis is 14 months old. she is trying out new things, playing with her toys, and manipulating objects in new ways--experimenting with her environment. glynnis is in which substage of piaget's first cognitive stage?

"We hold these Truths to be self-evident, that all Men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the Pursuit of Happiness ... " These words may be the best known part of the Declaration of Independence.

Explanation: Hope this helps