Estimating Square Roots
Using a Number Line
REVIEW
I plan to begin by reviewing how to graph a rational number on a number line.
The first three problems I will complete on the same number line.
1. Plot the number 3 on a number line. Be sure to include numbers above and below the given number.
2. On the same number line, graph the point 3.5. (Add in the ½ dashes)
3. On the same number line, graph the point 1¾. (Add in the ¼ dashes)
4. On a new number line, graph the point ⅘.
REVIEW: Continued
5. On a new number line, graph the point 2/9.
Discuss Perfect Squares and Square Roots
Discuss square roots that are not perfect squares.
6. Estimate the √18.
√18 is between which two perfect squares?
√16 and √25
Draw these on a number line, include all of the square roots between them.
7. Estimate the √28.
√18 is between which two perfect squares?
√25 and √36
Represent this on a number line.
Estimating Square Roots
8. Estimate the √60.
√60 is between which two perfect squares?
√49 and √64
Represent this on a number line.
9. Estimate the √79.
√79 is between which two perfect squares?
√64 and √81
Represent this on a number line.
17
Estimating Square Roots Using a Number Line
MEANINGFUL NOTES
Square Roots
Perfect Squares
What is the difference between a perfect square and a square root?
Examples for my future self!
Check Your Understanding Name:________________________
Estimating Square Roots Using a Number Line
1. Estimate the value of √6.
2. Estimate the value of √12.
3. Estimate the value of √23.
4. Estimate the value of √39.
Check Your Understanding ANSWER KEY
Estimating Square Roots Using a Number Line
1. Estimate the value of √6.
2. Estimate the value of √12.
3. Estimate the value of √23.
4. Estimate the value of √39.