### 1: Tools of Geometry

#### 1.1: Nets and drawings for visualizing Geometry

Surface and Lateral Area of Prisms and Cylinders

Surface and Lateral Area of Pyramids and Cones

#### 1.5: Exploring Angle Pairs

Investigating Angle Theorems - Activity A

#### 1.6: Basic Constructions

Construct Parallel and Perpendicular Lines

Constructing Congruent Segments and Angles

#### 1.8: Perimeter, Circumference and Area

Circle: Circumference and Area

Fido's Flower Bed (Perimeter and Area)

Perimeter, Circumference, and Area - Activity B

Rectangle: Perimeter and Area

### 2: Reasoning and Proof

#### 2.2: Conditional Statements

Conditional Statements

#### 2.3: Biconditionals and Definitions

Biconditional Statements

### 3: Parallel and Perpendicular Lines

#### 3.6: Constructing Parallel and Perpendicular Lines

Construct Parallel and Perpendicular Lines

#### 3.7: Equations of Lines in the Coordinate Plane

Point-Slope Form of a Line - Activity A

Slope - Activity B

Slope-Intercept Form of a Line - Activity A

### 4: Congruent Triangles

#### 4.2: Triangle Congruence by SSS and SAS

Proving Triangles Congruent

#### 4.3: Triangle Congruence by ASA and AAS

Proving Triangles Congruent

#### 4.5: Isosceles and Equilateral Triangles

Isosceles and Equilateral Triangles

#### 4.6: Congruence in Right Triangles

Congruence in Right Triangles

### 5: Relationships Within Triangles

#### 5.3: Bisectors in Triangles

Bisectors in Triangles

#### 5.4: Medians and Altitudes

Concurrent Lines, Medians, and Altitudes

#### 5.6: Inequalities in One Triangle

Triangle Inequalities

### 6: Polygons and Quadrilaterals

#### 6.1: The Polygon-Angle Sum Theorems

Polygon Angle Sum - Activity B

Triangle Angle Sum - Activity A

#### 6.3: Proving that a Quadrilateral is a Parallelogram

Parallelogram Conditions

#### 6.4: Properties of Rhombuses, Rectangles, and Squares

Classifying Quadrilaterals - Activity A

Special Quadrilaterals

#### 6.5: Conditions for Rhombuses, Rectangles, and Squares

Classifying Quadrilaterals - Activity A

Special Quadrilaterals

### 7: Similarity

#### 7.2: Similar Polygons

Similar Polygons

#### 7.4: Similarity in Right Triangles

Sine and Cosine Ratios - Activity B

### 8: Right Triangles and Trigonometry

#### 8.1: The Pythagorean Theorem and Its Converse

Geoboard: The Pythagorean Theorem

Pythagorean Theorem - Activity B

#### 8.3: Trigonometry

Sine and Cosine Ratios - Activity B

Tangent Ratio

### 9: Transformations

#### 9.2: Reflections

Reflections

#### 9.3: Rotations

Rotations, Reflections and Translations

#### 9.5: Congruence Transformation

Holiday Snowflake Designer

Quilting Bee (Symmetry)

#### 9.6: Dilations

Dilations

### 10: Area

#### 10.1: Areas of Parallelograms and Triangles

Area of Parallelograms - Activity B

#### 10.4: Perimeters and Areas of Similar Figures

Perimeters and Areas of Similar Figures

#### 10.8: Geometric Probability

Geometric Probability - Activity A

### 11: Surface Area and Volume

#### 11.2: Surface Areas of Prisms and Cylinders

Surface and Lateral Area of Prisms and Cylinders

#### 11.3: Surface Areas of Pyramids and Cones

Surface and Lateral Area of Pyramids and Cones

#### 11.4: Volumes of Prisms and Cylinders

Prisms and Cylinders - Activity A

#### 11.5: Volumes of Pyramids and Cones

Pyramids and Cones - Activity A

### 12: Circles

#### 12.2: Chords and Arc

Chords and Arcs

#### 12.3: Inscribed Angles

Inscribing Angles

#### 12.5: Circles in the Coordinate Plane

Circles