Math
Released Item 2016
Grade 6
Points on a Coordinate Grid
VH069754
Rubric Part A
Score Description
1
Student response includes the following element.
•
0
Reasoning component = 1 point
o The student uses correct reasoning to describe the location of
point K in relation to point J.
Sample Student Response:
“Point K is one-half unit to the left of point J.”
Student response is incorrect or irrelevant.
Rubric Part B
Score Description
2
Student response includes the following 2 elements.
•
•
Computation component = 1 point
o The student correctly identifies that the ordered pair (-3.5, 4)
and the ordered pair (-3.5,-4) both have the same x-value.
Reasoning component = 1 point
o The student uses correct reasoning to describe that reflection
was used to graph point L from point K.
Sample Student Response:
“Point L reflected across the x-axis, because the ordered pair of point K is
(–3.5, 4) and the ordered pair of point L is (–3.5, –4). The y value changes
from 4 to – 4.”
1
Notes:
• The student may receive a combined total of 2 points if the reasoning
processes are correct but the student makes one or more
computational errors resulting in incorrect answers.
• The student cannot receive more than 1 point for reasoning if the
explanations, while sufficient to indicate that the student had correct
reasoning, contain nonsense statements.
Student response includes 1 of the above elements.
0
Student response is incorrect or irrelevant.
Anchor Set
A1 – A8
With Annotations
A1
Part A: Score Point 1
Part B: Score Point 2
Annotation
Anchor Paper 1
Part A: Score Point 1
This response receives full credit. It includes the required element:
•
Correct reasoning to describe the location of point K in relation to point
J (Point K is half a place to the left from Point J).
Part B: Score Point 2
This response receives full credit. It includes each of the two required
elements:
•
Correctly identifies that the ordered pair (-3.5, 4) and the ordered pair
(-3.5, -4) both have the same x value (Point K and L both have the
same x axis number).
•
Uses correct reasoning to describe that the reflection was used to
graph point L from point K (The reflection would be point L is located
on the opposite place as point K. They are both on the same y axis and
the same distance from 0 but point K is in the 2nd section and point L
is the 3rd). The reference to the 2nd and 3rd quadrants implies the
reflection over the x-axis.
A2
Part A: Score Point 1
Part B: Score Point 2
Annotation
Anchor Paper 2
Part A: Score Point 1
This response receives full credit. It includes the required element:
•
Correct reasoning to describe the location of point K in relation to point
J (Point K is 0.5 units left of Point J).
Part B: Score Point 2
This response receives full credit. It includes each of the two required
elements:
•
Correctly identifies that the ordered pair (-3.5, 4) and the ordered pair
(-3.5, -4) both have the same x value (point L has the same x
coordinate).
•
Uses correct reasoning to describe that reflection was used to graph
point L from point K (reflected across the x axis).
A3
Part A: Score Point 1
Part B: Score Point 1
Annotation
Anchor Paper 3
Part A: Score Point 1
This response receives full credit. It includes the required element:
•
Correct reasoning to describe the location of point K in relation to point
J (Point K will be half a coordinate to the left of point J).
Part B: Score Point 1
This response receives partial credit. It includes one of the two required
elements:
•
Correctly identifies that the ordered pair (-3.5, 4) and the ordered pair
(-3.5, -4) both have the same x value (Both points move left of the
origin 3.5 spaces).
The response does not use correct reasoning to describe that reflection was
used to graph point L from point K. The response state that point L and point
K are reflected across the wrong axis (They are reflection of each other, and
if you reflected one point across the y-axis, then it would land on the other
point).
A4
Part A: Score Point 0
Part B: Score Point 2
Annotation
Anchor Paper 4
Part A: Score Point 0
This response receives no credit. It does not include the required element:
The response does not provide correct reasoning to describe the location of
point K in relation to point J. The reasoning is too vague (it would be
between the negative 3 and 4 and positve 4).
Part B: Score Point 2
This response receives full credit. It includes each of the two required
elements:
•
Correctly identifies that the ordered pair (-3.5, 4) and the ordered pair
(-3.5, -4) both have the same x value (the similarities would be in the
same x number negitiv 3.5).
•
Uses correct reasoning to describe that reflection was used to graph
point L from point K (A reflextion would be acros the x axis).
A5
Part A: Score Point 1
Part B: Score Point 0
Annotation
Anchor Paper 5
Part A: Score Point 1
This response receives full credit. It includes the required element:
•
Correct reasoning to describe the location of point K in relation to point
J (point K is a half of a box to the left than point J).
Part B: Score Point 0
This response receives no credit. It includes none of the two required
elements:
The response does not correctly identify that the ordered pair (-3.5, 4) and
the ordered pair (-3.5, -4) both have the same x value or use correct
reasoning to describe that reflection was used to graph point L from point K.
The response only attempts to identify the location of Point L (Point L would
be on the exact box on the grid but just on the bottom left of corrner).
A6
Part A: Score Point 0
Part B: Score Point 1
Annotation
Anchor Paper 6
Part A: Score Point 0
This response receives no credit. It does not include the required element:
The response does not provide correct reasoning to describe the location of
point K in relation to point J (half a unit below the -3), below is not the same
as left.
Part B: Score Point 1
This response receives partial credit. It includes one of the two required
elements:
•
Correctly identifies that the ordered pair (-3.5, 4) and the ordered pair
(-3.5, -4) both have the same x value (the x axis numbers are the
same).
The response does not use correct reasoning to describe that the reflection
was used to graph point L from point K (The only thing Thomas would need
to do to make these two ordered pairs the same is either make the 4 in point
K a -4, or make the -4 in point L a 4).
A7
Part A: Score Point 0
Part B: Score Point 0
Annotation
Anchor Paper 7
Part A: Score Point 0
This response receives no credit. It does not include the required element:
The response does not provide correct reasoning to describe the location of
point K in relation to point J. The response gives no indication of direction
(Thomas needs to plot his point a half line from his first point).
Part B: Score Point 0
This response receives no credit. It includes none of the two required
elements:
The response does not correctly identify that the ordered pair (-3.5, 4) and
the ordered pair (-3.5, -4) both have the same x value or use correct
reasoning to describe that reflection was used to graph point L from point K.
The response just gives a vague statement (They all have a simalarity
because they all are on the same coordinate and they all are the same axis
also).
A8
Part A: Score Point 0
Part B: Score Point 0
Annotation
Anchor Paper 8
Part A: Score Point 0
This response receives no credit. It does not include the required element:
The response does not provide correct reasoning to describe the location of
point K in relation to point J. The response just gives a vague statement (well
i think he could see the one he’s trying to plot and mark itd).
Part B: Score Point 0
This response receives no credit. It includes none of the two required
elements:
The response does not correctly identify that the ordered pair (-3.5, 4) and
the ordered pair (-3.5, -4) both have the same x value or use correct
reasoning to describe that reflection was used to graph point L from point K.
The response just gives a vague statement (he can do the same for this
one).
Practice Set
P101 - P105
No Annotations Included
P101a
P101b
P102
P103a
P103b
P104
P105
Practice Set
Paper
Score
P101
1,2
P102
1,1
P103
0,1
P104
0,0
P105
0,2