HSG-CO.D.13

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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.

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## HSG-CO.D.13

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

24 Lesson(s)

### Tremendous Triangles Projects

Geometry »
Unit: Tremendous Triangles

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.

Standards:

Favorites
(9)

Resources
(12)

Reflections
(1)

### Fall Interim Assessment

Geometry »
Unit: Fall Interim Assessment: Geometry Intro, Constructions and Rigid Motion

Geometry »
Unit: Fall Interim Assessment: Geometry Intro, Constructions and Rigid Motion

Big Idea:

#### This is a comprehensive assessment of Units 1, 2 and 3.

Standards:

Favorites
(3)

Resources
(6)

Reflections
(1)

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.

Standards:

Favorites
(17)

Resources
(23)

Reflections
(1)

### Constructing Regular Polygons Inscribed in Circles using Geometer's Sketchpad

Geometry »
Unit: Geometric Constructions

Geometry »
Unit: Geometric Constructions

Big Idea:

#### Students will use rotation to construct regular polygons inscribed in circles.

Standards:

Favorites
(1)

Resources
(14)

Reflections
(1)

### Geometric Constructions Assessment Error Analysis

Geometry »
Unit: Geometric Constructions

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.

Standards:

Favorites
(2)

Resources
(9)

Reflections
(1)

### Triangle Sum Theorem and Special Triangles

Geometry »
Unit: Discovering and Proving Triangle Properties

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.

Standards:

Favorites
(7)

Resources
(22)

Reflections
(1)

### Constructing Inscribed Regular Triangles, Quadrilaterals and Hexagons

Geometry »
Unit: Geometric Constructions

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.

Standards:

Favorites
(3)

Resources
(12)

Reflections
(1)

### Interior and Exterior Angle Sum of Polygons

Geometry »
Unit: Discovering and Proving Polygon Properties

Geometry »
Unit: 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.

Standards:

Favorites
(7)

Resources
(26)

Reflections
(1)

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.

Standards:

Favorites
(2)

Resources
(14)

Reflections
(1)

### Geometric Constructions End of Unit Assessment

Geometry »
Unit: Geometric Constructions

Geometry »
Unit: Geometric Constructions

Big Idea:

#### Students will complete an end of unit assessment on geometric constructions.

Standards:

Favorites
(1)

Resources
(8)

Reflections
(1)

### Constructing Quadrilaterals using Geometer's Sketchpad

Geometry »
Unit: Geometric Constructions

Geometry »
Unit: Geometric Constructions

Big Idea:

#### Students will construct quadrilaterals, parallelograms, rectangles and squares using Geometer's Sketchpad.

Standards:

Favorites
(2)

Resources
(13)

Reflections
(1)

### Common Core Geometry Midcourse Assessment Review Day 1 of 2

Geometry »
Unit: Common Core Geometry Midcourse Assessment

Geometry »
Unit: 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.

Standards:

Favorites
(1)

Resources
(11)

### Pulling It All Together: Parallel Lines Unit Review

Geometry »
Unit: Parallel Lines

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.

Standards:

Favorites
(1)

Resources
(24)

Reflections
(3)

### Constructing Triangles

Geometry »
Unit: Geometric Constructions

Geometry »
Unit: Geometric Constructions

Big Idea:

#### Students will construct triangles given segments of specific lengths.

Standards:

Favorites
(1)

Resources
(13)

Reflections
(1)

### Perfect Polygons

Geometry »
Unit: Congruence and Rigid Motions

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!

Standards:

Favorites
(3)

Resources
(29)

Reflections
(3)

Common Core Math

### Kindergarten

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### HS Number & Quantity

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### HS Geometry

### Kindergarten

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### Ninth and Tenth Grade

### Kindergarten

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### Third Grade

### Fourth grade

### Fifth grade

### Middle School

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

HS Number & Quantity

HS Algebra

HS Functions

HS Geometry

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

Eighth Grade

Ninth and Tenth Grade

Kindergarten

First grade

Second grade

Third Grade

Fourth grade

Fifth grade

Middle School