Lesson Plan
Square Root Activity
Goal:
This lesson is designed to reinforce conceptual understanding of the square root.
Grade:
8, Algebra 1.
CA Standards:
Understand and use operations such as finding a square root. (2.0)
Description:
The students work individually. They need to find the correct answer for each question,
and write down the letter that corresponds to the answer. When they have all the 23
letters, they can read them together to get the punch line.
Materials Needed:
Worksheets (given below), and pencils
The answer (punch line) is:
I DID NOT KNOW IT WAS MISSING
Lesson Plan Source:
California Algebra 1, Concepts and Skills book, by Larson, Boswell, Kanold, and Stiff
Chapter 9.1
Source of the cartoon:
Made by Jeff Macnelly
http://math.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=math&z
u=http%3A%2F%2Fwww.charlottemathtutor.com%2Fhtmlfile%2Fcartoons.
html
Submitted by:
GK-12 Fellows:
Andrea Nemeth
Jennifer Wright
2/9/2006
FIND THE PUNCHLINE BY SOLVING THE MULTIPLE
CHOICE QUESTIONS
Directions: Find the solution for the questions. Each question
has a correct answer. Write down the letter that corresponds to
the right answer. When you have all the 23 letters, read them
and you will have the punch line.
1.
x 2  64
A:
2.
x  8
I: x  8
D: x  10
A: x  10000
T: x  100
S: x  6
T: x  6
B: x  18
C: x  3
M: x  9
L: x  9
x   36
I: x  6
4.
T: x  9
x  100
E: x  10
3.
M: x  8
x  32
D: x  3
5.
6.
7.
8.
x  28
I: 20  x  30
N: 5  x  6
x  53
x  53
A: x  25
I: x  8
n 4
P: n 2  156 and
R: n 2  32 and
n  4
Z: n 2  4 and
n  4
12.
K: a  1000
T: a  100000
M: a  100
y   25
O: y  5
U: y  5
V: y  5
b  6  121
C: b  5 , b  17
A: b  127
O: b  5 , b  17
y  4  4  5
W: y  1, y  7
B: y  5 , y  13
S: y  5 , y  13
T: y  1, y  7
x   900
C: x  30
13.
n 4
a  1000000
E: b  17
11.
O: x  7
T: n 2  256 and
N: not a real number
10.
S: x  18
n  16
N: a  10000
9.
E:  6  x  5 P:  30  x  20
K: x  30
I: x  30
L: x  300
V: 46
N: 48
Which number is a perfect square?
A: 124
T: 64
14.
a  20
T: a  10
Y: a  400
15.
a  1, b  6 , c  5 . Then
A: 4
16.
17.
20.
D: -4
F: -16
b 2  4 ac 
B: 16
F: x  7 , x  3
S: x  7 , x  3
M: x  7 , x  3
R: x  7 , x  3
Which number is a perfect square?
y
4
8
9
59
P:
M:
81
49
4
5
A: y  
4
5
B: y  
4
5
D: y 
x  128
V: 120  x  130
Y: 50  x  60
F: 21  x  31
S: 10  x  12
b
121
46
T:
16
25
I: y 
19.
P: a  5.4
x  2  25
N:
18.
W: a  4 .4
 2  169
2
S: b 
11
15
,b  
2
2
V: b  
23
33
,b  
2
2
O: b  
Z: b 
17
9
,b 
2
2
13
23
,b 
2
2
5
4
21.
x  5  82
E: x  87
22.
C: x  8
I: x  14
N: y  10
H: y  44
M: y  44
R: -5
V: -6
y   111  21
G: y  130
23.
A: x  41
a  2 , b  4 . Then
P: 5
b 2  10a 
G: 6