In a Number Conservation Task a Set of Discrete Items

question 15

Multiple Choice

In a number conservation task a set of discrete items is laid out in two rows They are first laid out in exactly the same way,and then one row is moved so that the items are farther apart.Typically,3- and 4-year-olds

• A)recognize that the rows have the same number when they are arranged identically,but believe there are more items when they are farther apart.
• B)have no trouble with simple number conservation tasks like this,but make mistakes with more abstract math problems.
• C)can easily decenter from the number of objects to consider the spacing of items at the same time.
• D)realize that number of items is conserved when they are moved around,because they take into account all the relevant observations at once.

Understand how mask, position, control, and destination parameters are used in sequencer instructions.

Grasp the concept of retentive and non-retentive properties of sequencer instructions in PLC programming.

Learn to analyze and interpret the desired outcomes at specific sequencer steps.

Understand the role of external inputs and transitions in the operation of sequencer instructions.

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