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- HSG-CO.D.12Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). 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.
- HSG-CO.D.13Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.

Tremendous Triangles Projects

Geometry

» Unit:

Tremendous Triangles

Big Idea:It's students' time to shine! Students develop their own problem and then shoot a video to explain how to prove their triangles congruent.

Fall Interim Assessment

Geometry

» Unit:

Fall Interim Assessment: Geometry Intro, Constructions and Rigid Motion

Big Idea:This is a comprehensive assessment of Units 1, 2 and 3.

Constructing Regular Polygons Inscribed in Circles using Geometer's Sketchpad

Geometry

» Unit:

Geometric Constructions

Big Idea:Students will use rotation to construct regular polygons inscribed in circles.

Angles of a Triangle

Geometry

» Unit:

Parallel Lines

Big Idea:Students learn about the different types of triangles, the relationships between the interior and exterior angles of a triangle, and apply their knowledge to numerical problems and constructions.

Geometric Constructions Assessment Error Analysis

Geometry

» Unit:

Geometric Constructions

Big Idea:Using a generic student's responses to questions on the End of Unit Assessment, students will identify and explain errors and make corrections.

Interior and Exterior Angle Sum of Polygons

Geometry

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Discovering and Proving Polygon Properties

Big Idea:Through investigating a variety of polygons with different numbers of sides, students will discover the interior and exterior angle sum for any polygon.

Triangle Sum Theorem and Special Triangles

Geometry

» Unit:

Discovering and Proving Triangle Properties

Big Idea:By investigating the angles of four different types of triangles, students conjecture about the interior angle sum of triangles and ultimately prove the triangle sum theorem.

Constructing Inscribed Regular Triangles, Quadrilaterals and Hexagons

Geometry

» Unit:

Geometric Constructions

Big Idea:Students will use concepts from previous lessons to construct equilateral triangles, squares and regular hexagons inscribed in a circle.

Parallel Lines Unit Assessment

Geometry

» Unit:

Parallel Lines

Big Idea:Test time! Students demonstrate their knowledge of parallel lines, the relationships among angles of a triangle and the angle sums of a triangle, constructions, and logic statements.

Common Core Geometry Midcourse Assessment Review Day 1 of 2

Geometry

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Common Core Geometry Midcourse Assessment

Big Idea:Students create a review sheet covering topics from the first day of the midcourse assessment. They write tips for performing constructions and create questions about transformations on the coordinate plane.

Constructing Quadrilaterals using Geometer's Sketchpad

Geometry

» Unit:

Geometric Constructions

Big Idea:Students will construct quadrilaterals, parallelograms, rectangles and squares using Geometer's Sketchpad.

Geometric Constructions End of Unit Assessment

Geometry

» Unit:

Geometric Constructions

Big Idea:Students will complete an end of unit assessment on geometric constructions.

Constructing Triangles

Geometry

» Unit:

Geometric Constructions

Big Idea:Students will construct triangles given segments of specific lengths.

Pulling It All Together: Parallel Lines Unit Review

Geometry

» Unit:

Parallel Lines

Big Idea:Time to pull it all together! Students work cooperatively, applying their knowledge of parallel lines in preparation for the unit test.

Perfect Polygons

Geometry

» Unit:

Congruence and Rigid Motions

Big Idea:Constructing polygons inscribed in a circle allows students to experience first-hand the many congruences of a regular polygon. Besides, its fun!

HSG-CO.D.12

Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). 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.

HSG-CO.D.13

Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.