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Author Question: In the above situation, the lack of effect of the different arrangements of the pennies on the total ... (Read 58 times)

FButt

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In the above situation, the lack of effect of the different arrangements of the pennies on the total number is referred to as the ___________________ _______ in the psychological structure of the operation.
 
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Question 2

One of the reasons given by the child that the number in the circle is the same as it was in the row is that the circle can be returned to a row of pennies. This reason is evidence of what important characteristic of operational thinking? _______________.
 
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Moriaki

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Answer to Question 1

constant

Answer to Question 2

reversibility





 

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