1. Notes and Skills Practice
Square Roots
Notes and Skills Practice

2. Square Chart
On your graph paper, create a horizontal table with 2 rows and 26 columns
Label the rows “side” and “area”
Then trace one box just under the left-hand side of the table
Fill the side length and area for the square you traced onto the chart

3. Square Chart
Draw a new square around the first one that has a side length of 2 units
Fill this square’s side length and area onto the chart
Continue this process, adding one unit each time and drawing a square until you have filled out your whole table

4. What is a square root?
A square root is the inverse of squaring a number (or taking it to the second power)
It is related to the area of squares

5. Area of Squares
A square is special rectangle in which all sides are equal
A = b · h
but because base and height are equal
A of square = s · s or A = s²

6. Finding the Side of a Square
A square root is like being given the area of a square and finding the side length
A square with an area of 36 would have a side length of 6
A square with an area of 81 would have a side length of 9

7. Square Roots and Area The square root symbol is #
25 means “if the area of a square is 25, what is the side length?”
25 =5

8. Notes – Calculating Square Roots
A square root is the inverse of squaring a number (to the second power)
You need to figure out what number times itself will give you the amount underneath the square root symbol

9. Practice – Calculating Square Roots
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