Four-Year-Old Dimitri Agrees That Two Rows of Nickels, Equally Spaced

question 96

Multiple Choice

Four-year-old Dimitri agrees that two rows of nickels, equally spaced, contain the same number of nickels. If the spacing increased between the nickels in one row, he thinks that row now has more nickels. Dimitri has not acquired the concept of

• A) egocentrism.
• B) conservation.
• C) centration.
• D) object permanence.

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Definitions:

ArrayList

A resizable array implementation of the List interface in Java, providing dynamic array sizing and manipulation functionalities.

Memory Management Methods

Techniques and methods used in programming to allocate and deallocate memory efficiently.

EnsureCapacity

A method used in collections like ArrayList in Java, to pre-allocate storage to hold a minimum number of elements, optimizing performance by reducing dynamic reallocation.

Generic Class

A class in programming that is parameterized over types, allowing it to be used with various data types without modifying its source code.