1. Head to GOFO. No Calculator.
Good morning!
Head to GOFO.  No Calculator.
While computers are loading, write the date and objective in your notebook.  
Cell phones to front.

2. *Bellringer & Repeating Decimals-Delayed repeating
Agenda
*Bellringer & Repeating Decimals-Delayed repeating
*Khan Practice
*PopQuiz
*Squares and Roots

3. Bellringer 1) 2)
𝐴 B 3)
C 𝐷 4)

4. Bellringer
𝐴 B
C 𝐷

5. Khan Academy Practice-GOAL
Khan Academy Practice-GOAL! Go to Khan Academy and sign in with LOCO and pw (you may have two $ at end of password)

6. Pop Quiz in GOFO

7. Pop Quiz GoFo 1) 2)
𝐴 B 3)
C 𝐷
4) 0.4 1

8. Squares + Square Roots CCSS.MATH.CONTENT.8.EE.A.2
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.

9. Use cheez-its to make
perfect squares

10. 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

11. 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

12. 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.

13. 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.

14. 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

15. Graph the square roots on the number line:

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

17. Let’s Practice Perfect Squares

18. 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

19. 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

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

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

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

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

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

25. 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
Did not do geogebra with 3rd block-should preview just before estimating square roots

26. 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?

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