Sets Part 1 Test #4

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In this section, we introduce the concept of a set. A set is nothing more than a collection of things. We can enclose the elements of a set (items that
belong to a set) inside of curly braces. The order that elements are listed is not important. As an example, the set of even whole numbers less than 10
would be: {0, 2, 4, 6, 8} or we could scramble the order as: {2, 0, 6, 4, 8}. We also discuss many concepts related to the idea of a set. When we have
a set, everything under consideration is known as the universal set. We generally name our sets with capital letters. If one set, let’s say A, contains
all of the elements of another set, let’s say B, and those two sets are not equal, then set B is said to be a proper subset of set A. A set that contains
no elements is considered empty; we refer to this type of set as the null or empty set. Lastly, we will talk about the union of two sets and the intersection
of two sets. The union of two sets is a set that contains all elements of both sets. The intersection of two sets is a set that contains only the elements of
both sets that are common.

Sets Part 1 Resources:

Videos:

Khan Academy - Video
Khan Academy - Video
Virtual Nerd - Video
Text Lessons:

Math is Fun - Text Lesson
Math Goodies - Text Lesson
Online Math Learning - Text Lesson
Worksheets:

Math only Math - Worksheet
Khan Academy - Practice
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