### 1. Basics of Geometry

#### 1.6. Angle Pair Relationships

Investigating Angle Theorems - Activity A

#### 1.7. Introduction to Perimeter, Circumference, and Area

Rectangle: Perimeter, Circumference and Area

Circle: Perimeter, Circumference and Area

### 2. Reasoning and Proof

#### 2.1. Conditional Statements

Conditional Statement

#### 2.2. Definitions and Biconditional Statements

Biconditional Statement

#### 2.4. Reasoning with Properties from Algebra

Modeling and Solving Two-Step Equations

Solving Two-Step Equations

#### 2.5. Proving Statements about Segments

Constructing Congruent Segments and Angles

#### 2.6. Proving Statements about Angles

Investigating Angle Theorems - Activity B

### 3. Perpendicular and Parallel Lines

#### 3.1. Lines and Angles

Construct Parallel and Perpendicular Lines

#### 3.2. Proof and Perpendicular Lines

Investigating Angle Theorems - Activity A

#### 3.6. Parallel Lines in the Coordinate Plane

Slope-Intercept Form of a Line - Activity A

### 4. Congruent Triangles

#### 4.1. Triangles and Angles

Classifying Triangles

#### 4.2. Congruence and Triangles

Triangle Angle Sum - Activity B

#### 4.3. Proving Triangles are Congruent: SSS and SAS

Proving Triangles Congruent

#### 4.4. Proving Triangles are Congruent: ASA and AAS

Proving Triangles Congruent

#### 4.6. Isosceles, Equilateral, and Right Triangles

Bisectors in Triangles

Isosceles and Equilateral Triangles

### 5. Properties of Triangles

#### 5.1. Perpendiculars and Bisectors

Construct Parallel and Perpendicular Lines

#### 5.2. Bisectors of a Triangle

Bisectors in Triangles

#### 5.3. Medians and Altitudes of a Triangle

Concurrent Lines, Medians, and Altitudes

#### 5.5. Inequalities in One Triangle

Triangle Inequalities

### 6. Quadrilaterals

#### 6.3. Proving Quadrilaterals are Parallelograms

Parallelogram Conditions

#### 6.4. Rhombuses, Rectangles, and Squares

Classifying Quadrilaterals - Activity A

#### 6.6. Special Quadrilaterals

Special Quadrilaterals

#### 6.7. Areas of Triangles and Quadrilaterals

Area of Parallelograms - Activity B

### 7. Transformations

#### 7.1. Rigid Motion in a Plane

Rotations, Reflections and Translations

Reflections

Translations

#### 7.2. Reflections

Reflections

#### 7.3. Rotations

Rotations, Reflections and Translations

#### 7.4. Translations and Vectors

Translations

### 8. Similarity

#### 8.1. Ratio and Proportion

Beam to Moon (Ratios and Proportions)

#### 8.2. Problem Solving in Geometry with Proportions

Similarity in Right Triangles

#### 8.3. Similar Polygons

Similar Figures - Activity B

#### 8.7. Dilations

Dilations

### 9. Right Triangles and Trigonometry

#### 9.1. Similar Right Triangles

Similarity in Right Triangles

#### 9.2. The Pythagorean Theorem

Geoboard: The Pythagorean Theorem

#### 9.3. The Converse of the Pythagorean Theorem

Pythagorean Theorem - Activity B

#### 9.5. Trigonometric Ratios

Sine, Cosine and Tangent

Sine and Cosine Ratios - Activity B

Tangent Ratio

#### 9.6. Solving Right Triangles

Sine and Cosine Ratios - Activity B

#### 9.7. Vectors

Vectors

Adding Vectors

### 10. Circles

#### 10.2. Arcs and Chords

Chords and Arcs

#### 10.3. Inscribed Angles

Inscribing Angles

#### 10.6. Equations of Circles

Circles

### 11. Area of Polygons and Circles

#### 11.1. Angle Measures in Polygons

Polygon Angle Sum - Activity B

#### 11.3. Perimeters and Areas of Similar Figures

Perimeters and Areas of Similar Figures

#### 11.5. Areas of Circles and Sectors

Circle: Perimeter, Circumference and Area

#### 11.6. Geometric Probability

Geometric Probability - Activity A

### 12. Surface Area and Volume

#### 12.2. Surface Area of Prisms and Cylinders

Surface and Lateral Area of Prisms and Cylinders

#### 12.3. Surface Area of Pyramids and Cones

Surface and Lateral Area of Pyramids and Cones

#### 12.4. Volume of Prisms and Cylinders

Prisms and Cylinders - Activity A

#### 12.5. Volume of Pyramids and Cones

Pyramids and Cones - Activity B