1-4 square root.notebook - isd 622
TRANSCRIPT
14 square root.notebook December 02, 2013
= =
LT 1ab: p.1I can estimate square roots. I can graph a square root on a number line.
Define:
Define:Principal Square Root
Define:Negative Square Root
Square root is the ____________________ of a square
Define:Perfect Square A number whose principal square root is a _____________.
= =
x2x
Unit 5
________________________________________________________________________
________________________________________________________________________
List all perfect squares between 0100:
List a few NONperfect squares:
14 square root.notebook December 02, 2013
Graph Square Roots on a number line
Summary:
How do you estimate a square root? (no calculator)
Use perfect square numbers to estimate.
√26
step 1:
step 2:
DA CB E F
p.2Unit 5
√62 √ 6
√ 4 = √
√ 18 = √ √15 = 23 =
11 = √ 1 16 =
(no calculator)
√ 70
Find the area of the square. Estimate the length of each side of the square.
Squares and Square Roots
8 in
A = 80 in2
14 square root.notebook December 02, 2013
p.3Unit 5
For 25, find the value of each square root.
CW p.3 (1, 2, 5, 6, 10, 11, 16) P p.34 (all)
√16
1. List all the perfect squares between 0250.
2.
For 1013, estimate to the square root to the nearest tenth. (no calculator)
For 1415, find the length of the side of a square with the given area.
For 69, find two consecutive integers that each square root is between.
3. 4. 5. √ 425√49 √ 225
6. 7. 8. 9.√84 √ √ √ 11218 8
10. 11. 12. 13.√55 √ √37 62 √104
14. 15.A = 121 ft2 A = 1000 m2
For 1617, estimate the length of the side of a square with the given area. (no calculator)
16. 17.A = 10 m2 A = 150 m2
14 square root.notebook December 02, 2013
Wha
t ha
pp
ened
to
the
pla
nt in
Mrs
. She
n's m
ath
cla
ss?
Dire
ctions: For each problem, figure out w
hich consecutive integers the square root lies
between. W
rite the letter of the problem
on the number line between these two integers.
WU R G R
I C
p.4Unit 5
14 square root.notebook December 02, 2013
IF Checking:
1. 52
2. 122
3. (3)2
Use Mental Math to calculate each value no calculator.4. ( )2
5. 43
12
Grab an IF sheet from the front.
Box 1
14 square root.notebook December 02, 2013
3414
14 square root.notebook December 02, 2013
= =
LT 1ab: p.1I can estimate square roots. I can graph a square root on a number line.
Define:
Define:Principal Square Root
Define:Negative Square Root
Square root is the ____________________ of a square
Define:Perfect Square A number whose principal square root is a _____________.
= =
x2x
Unit 5
________________________________________________________________________
________________________________________________________________________
List all perfect squares between 0100:
List a few NONperfect squares:
Inverse Operation
example:
Positive Square Root
negative cannot be inside the sq. root.
whole #
14 square root.notebook December 02, 2013
How do you estimate a square root? (no calculator)
Use perfect square numbers to estimate.
√26
step 1:
step 2:
p.2Unit 5
√62 √ 6 √ 70
estimate which one it is closer to
identify the perfect square above and below
14 square root.notebook December 02, 2013
Graph Square Roots on a number line
DA CB E F
p.2
√ 4 = √
√ 18 = √ √15 = 23 =
11 = √ 1 16 =
(no calculator)
Find the area of the square. Estimate the length of each side of the square.
Squares and Square Roots
8 in
A = 80 in2
14 square root.notebook December 02, 2013
Summary:
Use perfect squares (1, 4, 9, 16, 25, 36, etc.) to help estimate square roots.
x2 and x are inverse operations.√
14 square root.notebook December 02, 2013
Show all work.
CW p.3 (1,2,5,6,10,11,16)
p.34 (all)P
2) 4 5) 6) 9 and 1010) ≈ 7.4 or 7.3 11) ≈ 7.9 or 7.816) ≈ 3.2 m or 3.1 m
25
2,5,6,10,11,16
1 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225
14 square root.notebook December 02, 2013
p.3 answers1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 2251.
2. 3. 4. 5.4 7 15 25
6. 7. 8. 9.9 and 10 2 and 3 4 and 5 10 and 1110. 11. 12. 13.≈ 7.4 or 7.3
≈ 7.9 or 7.8
≈ 6.1 ≈ 10.2 or 10.1
14. 15.
16. 17.
11 ft ≈ 31.6 m
≈ 3.2 m or 3.1 m
≈ 12.2 m or 12.3 m
p.4 answers
It grew perfect square roots.