1. Write Objective in notebook
Squares + Square Roots
Grab a foldable and
hmwk sheet
GOFORMATIVE &
Write Objective in notebook
CCSS.MATH.CONTENT.8.EE.A.2
I can evaluate the square root of a perfect
square and the cube root of a perfect cube
CCSS.MATH.CONTENT.8.NS.A.2
I can use estimate values to compare two or
more irrational numbers.

3. Use cheez-its to make
perfect squares

4. Cheez-it Activity *Each team will be given a cup of crackers
(don’t eat these)
*Make as many different size squares as you can and record on the graph paper.
1 cheez-it
makes a square
2 cheez-it
DOES NOT
make a square

5. Transfer your findings to the graphic organizer.
# of squares is the number of cheez-its in your square
The root is the number of squares on one side.

6. Draw an example of a perfect square number
Define “square root”
In your own words
Draw the radical sign
Draw an example of a perfect square number

7. Graph the square roots on the number line:

8. Can you find the mistake?
Completed Copy of
Graphic Organizer
Can you find the mistake?
Cool Points if you can!
6 squared = 36

9. Let’s Practice Perfect Squares

10. Use cheez-its to make perfect squares But what if we CUT
squares? Could we cut the
pieces to make 2 cheez-its
a square?

11. Which approximation comes closest?
Possible tries:
thirds fourths tenths
Which approximation comes closest?

13. VOCAB 7 is the square root of 49 7 squared is 49 3 squared is 9
The square root of 9 is 3
3 2 is 9
Squaring and square roots are opposite operations-just like addition and subtraction

14. Square Roots have 2 solutions...Whaaaaattt?
Square numbers have two of the SAME factors.
The square root of 36 could be 6 or -6.
6 x 6= 36
-6 x -6 = 36

15. If there is no sign in front of the radical, list the positive root.

16. If there is a +/- sign in front of the radical, list BOTH square roots.

17. If there is a - sign in front of the radical, list the negative square root.

18. Fractions:
If there is a fraction under the radical, take the square root of the numerator AND the denominator

19. What number can you square and get -16?
Negative under the Square Root-NO SOLUTION

20. Square Roots Games!
ndex.html?l=0&ID1=AB.MATH.JR.NUM B&ID2=AB.MATH.JR.NUMB.SQUA&less on=html/object_interactives/square_roots/u se_it.html