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Closed Sets

Web-based Resource

Closed Sets

Grade Levels

7th Grade, 8th Grade

Course, Subject

Related Academic Standards
A1.1.2.1.1 A1.1.2.1.1
Write, solve and/or apply a linear equation (including problem situations).
A1.1.2.1.2 A1.1.2.1.2
Use and/or identify an algebraic property to justify any step in an equation solving process (linear equations only).
A1.1.3.1.1 A1.1.3.1.1
Write or solve compound inequalities and/or graph their solution sets on a number line (may include absolute value inequalities).
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Description

A set is closed under an operation if the operation on two elements of the set produces another element of the set. For example, when you add two integers (4 + 1), you get another integer (5). Therefore, we can say that "integers are closed under addition." This page teaches students about closure and provides examples of closed sets. This Lesson is appropriate for grade level(s) 7-8.

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