Square Root Test #4

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In this section, we learn about Square Roots and higher level roots such as cube roots, fourth roots,…etc. We begin our process by learning
about the most basic of all roots, the square root. The square root of a number such as 9, is a number that when multiplied by itself gives
us back the number 9. Two such numbers would be 3, and (-3). If we multiply 3 • 3 we get 9, also if we multiply (-3)(-3) we get 9.
Therefore the square root of 9 is 3 or (-3). We then move into some basic notation issues that occur when dealing with roots in general.
We introduce something known as an irrational number, and discuss the difference between a rational and irrational number. We find that any
number whose square root is a rational number is called a perfect square. We wrap up the section by showing what to do when we have higher level roots.

Square Root Resources:

Videos:

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

Math is Fun - Text Lesson
Purple Math - Text Lesson
Cool Math - Text Lesson
Worksheets:

Home School Math - Worksheet
Khan Academy - Worksheet
Khan Academy - Practice
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