Asked to choose between two cookies of equal size, Jan takes the broken cookie, saying that three little cookies are more than one big one. Jan lacks

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Quizplus · Accepted Answer

Jan's response indicates a lack of conservation, which is the understanding that the quantity of an object does not change just because its appearance or arrangement changes. In this case, Jan incorrectly believes that the broken cookie is three separate cookies, failing to understand that it still contains the same amount of cookie as the unbroken one.

Asked to Choose Between Two Cookies of Equal Size, Jan