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In an Entity-Relationship Diagram,a Vertical Bar on a Line Indicates

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In an entity-relationship diagram,a vertical bar on a line indicates that at least one entity of that type is required in the relationship.


Definitions:

Whole Number Skills

The ability to understand, use, and manipulate whole numbers, encompassing skills such as addition, subtraction, multiplication, and division.

Reversibility

The ability to recognize that objects can change form or condition and return to their original form or condition.

Seriation

The cognitive ability to arrange objects in an order according to size, shape, or any other characteristic, which is a key aspect of logical thinking in children.

Long-Term Memory

The aspect of memory concerned with the storage of information over an extended period, potentially for a lifetime.

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