Math Grade 3 Geometry (G) Teacher Key Shapes and Their Attributes

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Math Grade 3
Geometry (G)
Teacher Key
Shapes and Their Attributes
Benchmarks that are Measured in this Quizlet
Benchmark Code
Benchmark
Item #
3.SMC.G.1.1-1.b
Recognize that shapes in different categories may share attributes, and that
the shared attributes can define a larger category
1, 2
3.SMC.G.1.1-2.b
Identify examples of quadrilaterals including rhombuses, rectangles, and
squares
3, 4
3.SMC.G.1.1-3.b
Draw examples of quadrilaterals that are not rhombuses, rectangles, and
squares
5, 6
3.SMC.G.1.2-1.c
Partition shapes into parts with equal areas
7, 8
3.SMC.G.1.2-2.c
Express the area of equally partitioned parts as a unit fraction of the whole
9, 10
3.SMP.5.c
Use appropriate tools strategically
10
August 2015
MATH GR3 G QUIZLET 1
Teacher Key
NOTES TO TEACHERS
This series of Quizlets is meant to be used for classroom formative assessment. Different from tools to evaluate student learning
summatively, they are meant to be used by teachers as a part of the instructional process.
Some features of these Quizlets are:
 The Quizlets are fully aligned with the Benchmarks.
 Each Quizlet is has a variety of item types: multiple choice (MC), multiple response (MR), short response (SR) and
performance-based (PB).
 The Quizlets were created using Microsoft® Word so that they can be modified.
 Item stems and graphic organizers can be used to create additional assessments that are aligned to the benchmarks.
Quizlets can be used to identify benchmarks where students are struggling or identify individual students who need additional learning
opportunities.
Item
Teacher Key: Shapes and Their Attributes
Benchmark Code
Benchmark
Correct
Answer
Number
of Points
1.
3.SMC.G.1.1-1.b
Recognize that shapes in different categories may share attributes, and
that the shared attributes can define a larger category
B, C
2
2.
3.SMC.G.1.1-1.b
Recognize that shapes in different categories may share attributes, and
that the shared attributes can define a larger category
A
1
3.
3.SMC.G.1.1-2.b
Identify examples of quadrilaterals including rhombuses, rectangles,
and squares
A, D, E
3
4.
3.SMC.G.1.1-2.b
Identify examples of quadrilaterals including rhombuses, rectangles,
and squares
D
1
5.
3.SMC.G.1.1-3.b
Draw examples of quadrilaterals that are not rhombuses, rectangles,
and squares
SR
1
6.
3.SMC.G.1.1-3.b
Draw examples of quadrilaterals that are not rhombuses, rectangles,
and squares
SR
2
7.
3.SMC.G.1.2-1.c
Partition shapes into parts with equal areas
SR
2
8.
3.SMC.G.1.2-1.c
Partition shapes into parts with equal areas
SR
3
9.
3.SMC.G.1.2-2.c
Express the area of equally partitioned parts as a unit fraction of the
whole
SR
2
3.SMC.G.1.2-2.c
Express the area of equally partitioned parts as a unit fraction of the
whole
PB
8
10.
3.SMP.5.c
Use appropriate tools strategically
Page 2
MATH GR3 G QUIZLET 1
Teacher Key
Explained Answers
SHORT RESPONSE EXPLAINED ANSWERS
ITEM 5. Quadrilateral Figure (1 points)
Benchmark: 3.SMC.G.1.1-3.b Draw examples of quadrilaterals that are not rhombuses, rectangles, and squares
Item Stem
Responses
Use a straight edge to draw a quadrilateral that has no right
angles.
Parallelogram or Kite or Trapezoid or Diamond
Points
1 point for correct
figure
SHORT RESPONSE EXPLAINED ANSWERS
ITEM 6. Trapezoid Figure (2 points)
Benchmark: 3.SMC.G.1.1-3.b Draw examples of quadrilaterals that are not rhombuses, rectangles, and squares
Item Stem
Responses
Points
1 point for one set of
parallel lines
Use your straight edge to draw a trapezoid with a right angle.
Figure must have one set of parallel lines, and two 90 degree angles.
1 point for two 90
degree angles
SHORT RESPONSE EXPLAINED ANSWERS
ITEM 7. Candy Bar (2 points)
Benchmark: 3.SMC.G.1.2-1.c Partition shapes into parts with equal areas
Item Stem
Jan has a candy bar that she wants to share with three
friends. Draw lines with a straightedge to show how she could
break the candy bar into equal parts so that she and her three
friends have the same amount.
Responses
Points
1 point for 4 parts
(reading careful)
or
1 point for
approximately equal
parts
Page 3
MATH GR3 G QUIZLET 1
Teacher Key
SHORT RESPONSE EXPLAINED ANSWERS
ITEM 8. Pizza Slices (3 points)
Benchmark: 3.SMC.G.1.2-1.c Partition shapes into parts with equal areas
Item Stem
Responses
Points
Michael and Jason ordered pizza. The pizza came in 8 equal
slices. They each eat one slice of pizza.
Part A Using a straightedge divide the circle, into 8 equal
parts to represent the pizza.
1 point for showing
approximately
8 equal parts
1 point for shading
2 slices
Part B In the circle above, shade how much pizza was eaten.
SHORT RESPONSE EXPLAINED ANSWERS
ITEM 9. Rectangle Pieces (2 points)
Benchmark: 3.SMC.G.1.2-2.c Express the area of equally partitioned parts as a unit fraction of the whole
Item Stem
Responses
Using the diagram below, write the fraction of the unshaded
portion of the rectangle.
4
6
Page 4
or
2
3
Points
1 point for correct
numerator
1 point for correct
denominator
MATH GR3 G QUIZLET 1
Teacher Key
PERFORMANCE-BASED RUBRIC
ITEM 10. Polygon Fraction (8 points)
Benchmark: 3.SMC.G.1.2-2.c Express the area of equally partitioned parts as a unit fraction of the whole
Benchmark: 3.SMP.5.c Use appropriate tools strategically
Item Stem:
Level
Criteria
Part A In the space provided below do the following.
In addition to the understanding in Level 3.0, the student
4.0
Step 1 Use a ruler to draw a polygon (examples: square, rectangle, pentagon,
exhibits in-depth inferences and applications that go
(7-8
hexagon or other figure).
Points)
beyond what was taught.
Step 2 With the ruler divide the polygon into five equal parts. Do your best to make
the parts equal.
The student exhibits no major errors or omissions at third
Step 3 Shade in
2
5
of the area of the polygon.
Step 4 Draw dots in
1
5
of the area of the polygon. Do not draw dots in an area that is
shaded.
3.0
(5-6
Points)
grade level by:

3.SMC.G.1.2-2.c Dividing the polygon into five equal
sections AND correctly identifying the portion without
2
shading or dots is .

Part B What fraction of the polygon has neither dots nor shading?
Possible Responses:
Parts A
Steps 1 ‒ 4 (answers will vary)
2.0
(3-4
Points)
5
3.SMP.5.c Correctly using a ruler to create a measured
polygon with straight sides and with equal divisions.
The student exhibits major errors or omissions regarding
the more complex ideas and processes, but makes no
major errors or omissions regarding the simpler details
and processes at third grade level, including:

3.SMC.G.1.2-2.c Dividing the polygon into five equal
sections OR correctly identifying the portion without
2
shading or dots is .
Part B
2
5

of the rectangle is not shaded.
1.0
(1-2
Points)
0.0
(0
Points)
Page 5
5
3.SMP.5.c Using a ruler to draw straight sides of an
approximate simple polygon and approximately divides
the polygon without measuring.
With help, the student demonstrates partial
understanding of some of the score 2.0 elements and
some of the score 3.0 elements at the third grade level.
Even with help, the student demonstrates little
understanding of skills.
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