These concerns about adult behaviors and perceptions are a fairly recent emergence, as is predicted for children in the first grade (Snowman & Biehler 2004). The fact that the Barbies converse with each other is also standard for my daughter's age-range, which is in the established peak of talking to oneself people who allow pet owners to mistreat their pets (Snowman & Biehler 2004). Overall, my daughter's behaviors during her undirected solitary play were fairly standard for her age group, and clearly demonstrated many of the principles and developmental stages that have been identified in the text.

Her performance on Piaget's conservation model assessment also upheld the text, in its criticism of Piaget as having underestimated the abilities of children (Snowman & Biehler 2004). Her immediate assessment of the water's consistent volume (which was, of course, correct) suggest that she is in the operational stage with more solid footing than...
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