Decreasing Centration, Reversibility of a Sequence, and Set Identity Contribute

question 7

Multiple Choice

Decreasing centration, reversibility of a sequence, and set identity contribute to a concrete thinker's ability to __________.

• A) identify faces and names
• B) conserve physical properties
• C) rank items by importance
• D) recall a list of items

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Definitions:

Marginal Product

An increase in output resulting from the use of one more unit of a particular input, holding all other inputs constant.

Opportunity Costs

The price paid when one skips the second-best option available in making a choice.

Economic Costs

The total costs of undertaking an economic activity, including both explicit costs and opportunity costs.

3-D Printers

Devices that create three-dimensional objects by layering material according to digital models, used in various industries for prototyping, manufacturing, and hobbyist projects.