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Three-year-old Max cries when he sees that his 6-year-old sister has two cookies
while he only has one. Tyler, who is babysitting his younger siblings, remembers a
concept he learned in psychology class, so he reaches over and breaks Max's cookie
into two equal halves. Max gleefully points to his sister's cookie and says, "Yay! I now
have the same amount of cookies as Sisty!" Tyler used his understanding of
to end Max's tantrum.
object permanence
conservation
12
O mental trickery
numeracy

Tyler used his understanding of conservation to end Max's tantrum.

Explanation:

Max is only three years old, not yet able to understand that, even though the appearance of the cookie changed, the amount of cookies he has is the same as before. That ability is called conservation, according to Piaget's theory. Tyler knows that Max hasn't developed conservation yet, so he tricks him into thinking he has two cookies, so to speak, instead of just one. Of course, once he develops the ability to understand conservation, Max will no longer be fooled.

many citizens are in danger of contracting a food-borne illness.

more people are living with chronic illnesses.

pathogens are becoming stronger and harder to defeat.

edge nuity