MATHS.GCO.12 Make basic geometric constructions with a variety of tools and methods.
Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line. Tools may include compass and straightedge, string, reflective devices, paper folding or dynamic geometric software.
Student Learning Targets:
Knowledge Targets
I can
I can
Reasoning Targets
I can
I can
Skills (Performance) Targets
I can use a variety of methods and tools to:
copy a segment
copy an angle
bisect a segment
bisect an angle
construct perpendicular
lines, including the perpendicular bisector of a line segment
construct a line parallel to a given line through a point not on the line
Product Targets
I can
I can
Proficiency Scale
Score
Description
Sample Activity
Advanced
In addition to Score 3.0, the student demonstrates indepth inferences and applications regarding more complex material that go beyond end of instruction expectations.
Explain how to construct a geometric figure
Explain the type of construction and the next step in completing the construction, giving specific steps.
3.5
In addition to Score 3.0 performance, the student demonstrates indepth inferences and applications regarding the more complex content with partial success.
Proficient
“The Standard.” The student demonstrates no major errors or omissions regarding any of the information and processes that were end of instruction expectations.
Construct a geometric figure using various tools and/or methods (Ex: compass and straightedge, Geogebra)
(a) copy a given line segment
(b) copy an angle.
(c) bisect a line segment.
(d) bisect an angle.
(e) construct a line perpendicular to a given line through a point on that line.
(f) construct a line perpendicular to a given line through a point not on that line.
(g) construct the perpendicular bisector of a line segment.
(h) construct a line parallel to a given line through a point not on the line.
Identify and complete the construction.
2.5
The student demonstrates no major errors or omissions regarding the simpler details and processes (Score 2.0 content) and partial knowledge of the more complex ideas and processes (Score 3.0 content).
Progressing
The student demonstrates no major errors or omissions regarding the simpler details and processes but exhibits major errors or omissions regarding the more complex ideas and processes (Score 3.0 content).
can recognize and recall terminology to answer questions
identify the type of construction given an example
1.5
The student demonstrates partial knowledge of the simpler details and processes (Score 2.0 content) but exhibits major errors or omissions regarding the more complex ideas and procedures (Score 3.0 content).
Beginning
With help, the student demonstrates a partial understanding of some of the simpler details and processes (Score 2.0 content) and some of the more complex ideas and processes (Score 3.0 content).

0.5
With help, the student demonstrates a partial understanding of some of the simpler details and processes (Score 2.0 content) but not the more complex ideas and processes (Score 3.0 content).
0.0
Even with help, the student demonstrates no understanding or skill.