13 free questions on the next cst s
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How to rob from the rich (test makers) … and give to the poor (your students, who might score BASIC otherwise!). 13 Free Questions on the next CST s. Need 38 correct answers for “proficient”. 41. Ye Olde Let x = Zero strategy. Standard 12 : 3 questions. Let x = 2. Technique will not - PowerPoint PPT PresentationTRANSCRIPT
13 Free Questions on the next CSTs
How to rob from the rich (test makers) … and give to the poor (your students,
who might score BASIC otherwise!)
Need 38 correct answers for “proficient”
Ye Olde Let x = Zero strategy
41
9
1
3 1
1
3 3
0 1
3 0 3
4 0 1
3 0 3
1
Standard 12 : 3 questions
2
2
6 12:3 11 20
x xSimplify
x x
A)
B)
2 3
52 3
5
x
xx
x
C)
D)
2 3
52 3
5
x
xx
x
Let x = 2
24 2 12
12 22 20
14
14
4 3
2 5
4 3
2 5
0 2 0 1 14x
Standard 4 : 3 questions 5
Technique will not usually work for
equationsOr when
denominator = 0.
8 102
24
16 4 8 4 16 2 2
Let x = 2
12 10 1210
Which fraction equals the product
5 3
2 5
43
15 3
10 2
7 7 1 4
4 8 1 2 1
7 1
4 2
7 3
4 0
42Standard 13 : 4 questions
Technique will not usually work when
denominator = 0.
Let x = 1
7 3 21
6 4 24
7 2
4 3
7 0
4 3
2 2
2 2
12 20 3 2 5 3
25 5 27 10
x x x x
x x x
6 1
56 1 5 2
5 1
6 1 5
5 1
6
A)
B)
C)
1 5 2
5D
1)
x
xx x
x x
x x
x x
x x
x x
3 3
25 10
3 10
25 3
2
5
1
5
2
5
5
5
2
5
13 Free Questions on the CSTs
How to rob from the rich (test makers) … and give to the poor (your students,
who might score BASIC otherwise!)
Ye Olde Graphing strategy
Standard 6: 4 questions
[C]
[D]
[A]
[B]
The graph could represent which equation?
x
y
2 1y x 2y x2 1y x 2 1y x
Slope is positive y-intercept is
negative
Ye Olde Graphing strategy
Standard 6: 4 questions
[C]
[D]
[A]
[B]
The graph could represent which equation?
x
y
2 1y x 2y x2 1y x 2 1y x
Slope is negative y-intercept is
negative
Which graph shows this linear equation?
3 4y x
x
y(A)
x
y(C)
x
y(D)
x
y(B)
Standard 9: 5 questions
[C]
[D]
[A]
[B]
The graph represents which inequality?2
23
y x
22
3y x
2 1y x
“<“ dotted“” Solid lineCheck (0,0)
22
3y x
22
3y x
Which graph shows this linear inequality? 2 3y x 0 ?0 ?3?
15.
10 0
2???1
0 1
21.
Which graph represents the solution to the system
2 1x y
2 5 10x y
A
D
C
B
(0,4)
(0,0)
0 0 1?
0 0 0?1
C
36.
For what values of x is y = 0?
Which is the graph of 23 2y x D
CB
A
Teach: Negative causes the parabola to open downward. When x = 0
Standard 21: 3 questions
Which equation best represents the function graphed?
2
2
2
2
A)
B)
C)
3 4
3 4
D
3 4
3 4)
y x
y x
y x
y x
Which equation best represents the function graphed?
2
2
2
2
A)
B)
C)
3 4
3 4
D
3 4
3 4)
y x
y x
y x
y x
Ye Olde Other strategyWork Backwards
27.
Work backwards
FOIL
28.
Work backwards
2 42x x 2 42 0x x
6 7 0x x
30.
Work backwards
2 6 16 0x x
2 8 0x x
Ye Olde Other strategyWork Backwards
“Back-2” List on scratch paper.
Do NOT write on the test, under penalty of
Eliminate all the weird choices
This presentation is a PowerPoint file and can be downloaded in its entirety from my website at: http://edtech.nmusd.us:8080/
Select “M”, then Charles Mabry, then the FOCUS tab on the left.
There is also a Powerpoint containing all of the released questions, and a “FourSquare” game for teaching the graphing strategy.
My email is: [email protected]