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PrintTeacher  Felicia Taylor 

Subject Area  Geometry Honors 

Grade Level  8th 

Week #  24 

Unit of Instruction  6: Constructions 

Standard(s) Taught 

MAFS.912.GCO.4.12
Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc. This includes: copying a segment, copying 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.)
MAFS.912.GCO.4.13
Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.

Learning Targets and Learning Criteria 

I can…
 identify the tools used in formal constructions.
 use tools and methods to precisely copy a segment.
 use tools and methods to precisely copy an angle.
 use tools and methods to precisely bisect a segment.
 use tools and methods to precisely bisect an angle.
 construct perpendicular lines and bisectors.
 construct a line parallel to a given line through a point not on the line.
 define inscribed polygons.
 construct an equilateral triangle, a square, a hexagon inscribed in a circle.
 explain the steps to constructing an equilateral triangle, a square, and a regular hexagon inscribed in a circle.

Classroom Activities 

Monday (2nd Period) / Tuesday (7th & 8th Periods)
 DIA 3: Quadrilaterals and Coordinate Geometry
Wednesday (All classes – short periods)
 Go over DIA 3 Remediation
 MathSpace – DIA 3 Remediation is due in one week, Wednesday, February 21st
 Go over Geometry Nation MiniAssessments Remediation – is due in one week, Wednesday, February 21st
 Canvas
 Review new unit – 6: Constructions
 Instruction
 Constructions
 Notes are in Nearpod
 Geometry Coach – Nearpod Code: YMWBZ
 Geometry Nation – Nearpod Code: ZWQVI
Thursday (2nd Period) / Friday (7th & 8th Periods)
 Classwork on Constructions
 IXL
 B.9 Construct the midpoint or perpendicular bisector of a segment
 C.6 Construct an angle bisector
 C.7 Construct a congruent angle
 D.2 Construct a perpendicular line
 D.5 Construct parallel lines

Assignments Due 

Summatives
DIA 3: Quadrilaterals and Coordinate Geometry – due Monday, February 12th (2nd Period) / due Tuesday, February 13th (7th & 8th Periods)
Formatives
IXL
 B.9 Construct the midpoint or perpendicular bisector of a segment – due Thursday, February 15th (2nd Period) / due Friday, February 16th (7th & 8th Periods)
 C.6 Construct an angle bisector – due Thursday, February 15th (2nd Period) / due Friday, February 16th (7th & 8th Periods)
 C.7 Construct a congruent angle – due Thursday, February 15th (2nd Period) / due Friday, February 16th (7th & 8th Periods)
 D.2 Construct a perpendicular line – due Thursday, February 15th (2nd Period) / due Friday, February 16th (7th & 8th Periods)
 D.5 Construct parallel lines – due Thursday, February 15th (2nd Period) / due Friday, February 16th (7th & 8th Periods)

Additional Resources 

 Canvas in the Geometry Honors tab on Canvas all notes for Constructions will be listed.
 19 Guide Notes TE – Constructions.pdf
 GNConstructionsTE.pdf
 Nearpod
 Geometry Coach Notes – Nearpod CODE: YMWBZ
 Geometry Nation Notes – Nearpod CODE: ZWQVI
 Geometry Nation – for additional help, watch the following videos on Constructions:
 Section 1, Topic 9: Basic Constructions – Part 1
 Section 1, Topic 10: Basic Constructions – Part 2
 Section 1, Topic 11: Constructing Perpendicular Bisectors
 Section 1, Topic 12: Proving the Perpendicular Bisector Theorem using Constructions
 Section 3, Topic 11: Copying Angles and Constructing Angle Bisectors
 Section 7, Topic 7: Inscribed and Circumscribed Circles of Triangles
 Section 10, Topic 7: Constructions of Quadrilaterals
