Mrs. Pearson cut Judy's hot dog into eight pieces and Sylvia's into six pieces. Sylvia cried because she felt she wasn't getting as much hot dog as Judy. Piaget would say that Sylvia doesn't understand the principle of ___.

Conservation

Explanation:

Conservation is a concept that was proposed by Jean Piaget in cognitive development theory. This concept was found in the pre-operational stage around 2 to 7 year age. It is logical thinking. In this concept children developed logical thinking for certain quantity despite the size, the shape has been changed. The conservation concept is related to logical thinking in children.  

Thus in the above statement, when Mrs. Pearson cut the hot dog in eight pieces for Judy and six pieces for Sylvia. Sylvia starts to cry, she thought Judy much than her because she does not develop her conservation concept related to the number of things.  

there are indirect ways of affecting state laws   by with holding funding's. and that's why we have a 55mph speed on the high way with a design of 70mph speed.

answer; direct observation;