1Geometry
Content
Rubric
Proving a
Quadrilateral is a
Square
G-GPE
Use coordinates to
prove simple
geometric theorems
algebraically.
0
1
2
3
Did Not Meet Standard
The student was Student was able
not able to meet to do one of the
the criteria for a following:
level 1 response.
Find the correct
length of AB = 5.
OR
Student was able
to:
Find the correct
length of AB = 5
AND
3
Student was able to:
Find the correct
length of AB = 5
Find the correct
length of AB = 5
AND
AND
Find the correct
3
slope of AB = − 4
.
Student was able to:
Find the correct
3
slope of AB = − 4
.
Met Standard
Find the correct
Find the correct
4
slope of AB = − 4 .
AND
3
slope of AB = − 4 .
AND
Give partial proof
Give correct proof
that shows equal
such as: The slope of
side lengths OR
perpendicular slopes. DA = 4 = slope of CB.
3
The slope of
3
AB = - 4 . Therefore
the sides of the
shape are
perpendicular. The
lengths of AB and AD
are 5. Therefore the
shape is a square.
ALD Claim 3
0
Standards for
Mathematical
Practice 3
Students can clearly
Construct viable
arguments to
support their own
reasoning and to
critique the
reasoning of others.
12015
Level 0 students
are unable to
provide an
argument or
identify obvious
flawed arguments
in familiar contexts
1
3
4
Did not meet standard
Met Standard
Exceeds Standard
Level 1 students
should be able to
base arguments on
concrete referents
such as objects
drawings, diagrams,
and actions and
identify obvious
flawed arguments
in familiar contexts.
Level 3 students should
be able to use stated
assumptions,
definitions and
previously established
results and examples
to test and support
their reasoning or to
identify, explain and
repair the flaw in an
argument. Students
should be able to break
an argument into cases
to determine when the
argument does or does
not hold.
Level 4 students should
be able to use stated
assumptions
definitions and
previously established
results to support their
reasoning or repair and
explain the flaw in an
argument. They
should be able to
construct a chain of
logic to justify or refute
a proposition or
conjecture and to
determine the
conditions under which
an argument does or
does not apply.
Content and ALD Claim 3/Math Practice Rubrics
2
Level 2 students
should be able to
find and identify
the flaw in an
argument by using
examples or
particular cases.
Students should be
able to break a
familiar argument
given in a highly
scaffolded situation
into cases to
determine when
the argument does
or does not hold.
Practice Task Specific
Rubric
0
2
Did not meet standard
Math Practice 3
Proving a
Quadrilateral is a
Square
1
Student does not
meet criteria for
Level 1.
Student joins sides
of the quadrilateral
and indicates by
marking or stating
equal side lengths
OR right angles
and declares shape
is a square.
3
2
3
2015 Content and ALD Claim 3/Math Practice Rubrics
2015 Content and ALD Claim 3/Math Practice Rubrics
3
4
Met Standard
Student joins sides of
the quadrilateral and
indicates by marking
or stating equal side
lengths AND right
angles and declares
shape is a square.
Student joins sides
of the quadrilateral
and uses work
from questions 1
and 2 referring to
equal side lengths
OR perpendicular
slopes to prove
shape is a square.
Exceeds Standard
Student joins sides
of the quadrilateral
and uses work
from questions 1
and 2 referring to
equal side lengths
AND perpendicular
slopes to prove
shape is a square.