Download Major Cluster

Cluster Summary for: Draw and identify lines and
angles, and classify shapes by properties of their
lines and angles.
Grade Level: 4th
Domain: Geometry
Cluster Priority: ___
Major Cluster ___ Supporting Cluster X Additional Cluster
SCALE
TRIMESTER 1
TRIMESTER 2
TRIMESTER 3
4: Advanced
In addition to score 3, in-depth inferences and applications go beyond Mathematics, are applied to other disciplines, and are utilized in real-world contexts.
3: Proficient
Draw points, lines, line segments,
Draw points, lines, line segments, rays,
Draw points, lines, line segments, rays, angles (right,
The student exhibits
rays, angles (right, acute, obtuse) and angles (right, acute, obtuse) and
acute, obtuse) and perpendicular and parallel lines.
no major errors or
perpendicular and parallel lines.
perpendicular and parallel lines. Identify Identify these in two-dimensional figures.
omissions.
Identify these in two-dimensional
these in two-dimensional figures.
figures.
Classify two-dimensional figures based
Classify two-dimensional figures based on the presence or
on the presence or absence of parallel
absence of parallel or perpendicular lines, or the presence
or perpendicular lines, or the presence
or the absence of angles of a specified size.
or the absence of angles of a specified
Recognize right triangles as a category, and identify right
size.
triangles.
Recognize right triangles as a category,
and identify right triangles.
Proficiency Example
Example:
Given an angle, determine whether it
is acute, right, or obtuse.
Example:
Draw ray AD and label point C on the
ray. Name a segment on the ray.
Recognize a line of symmetry for a two-dimensional figure
including those found in MT American Indian design, as a
line across the figure such that the figure can be folded
along the line into matching parts. Identify line-symmetric
figures and draw lines of symmetry.
Example:
Examine figure A. How many lines of symmetry does it
have? Draw them on the figure.
2: Partially Proficient
There are no major errors or omissions regarding the simpler details and processes as the student recognizes or recalls terminology and performs basic processes.
However, the student exhibits major errors or omissions regarding the more complex ideas and processes.
1: Novice
With help, a partial understanding of some of the simpler details and processes and some of the more complex ideas and processes.
0: No Evidence
Even with help, no understanding or skill demonstrated.
Mathematical Practices Best Taught in this Cluster: (check those that apply)
__ Make sense of problems & preserve in solving them __ Reason abstractly & quantitatively __ Construct viable arguments & critique the reasoning of others
__Model with mathematics __Use appropriate tools strategically __Attend to precision __Look for and make use of structure __Look for & express regularity in
repeated reasoning
Key Vocabulary for the Cluster: