Larry notices that his son tate is having a great time playing near the kitchen sink. when larry asks tate what he is doing, tate responds, "it is fun to look at two different-size glasses, imagine water pouring back and forth between them, and knowing that the amount of water stays the same even though the glass shapes differ." piaget would describe tate's comments as indicating that he has acquired

"six months ago, several of molly's friends joined the trimtime fitness center. each of them participated in trimtime's weight-reduction and fitness regimen. all reported substantial weight reduction, and all are visibly slimmer. molly is convinced. she joins trimtime and enrolls in the program, hoping and expecting to see the same results. she is especially delighted to learn that trimtime had adjusted its program to make it even more effective in a shorter period of time." what is the feature in question/attribute of interest in this argument?