### 1: Reasoning in Geometry

#### 1.4: Conditional statements and Their Converses

Biconditional Statement

Conditional Statement

#### 1.5: Tools of the Trade

Construct Parallel and Perpendicular Lines

Constructing Congruent Segments and Angles

### 2: Segment Measure and Coordinate Graphing

#### 2.1: Real Numbers and Number Lines

Real Number Line - Activity A

#### 2.4: The Coordinate Plane

Points in the Coordinate Plane - Activity A

### 3: Angles

#### 3.4: Adjacent Angles and Linear Pairs of Angles

Investigating Angle Theorems - Activity A

Investigating Angle Theorems - Activity B

#### 3.5: Complementary and Supplementary Angles

Investigating Angle Theorems - Activity A

Investigating Angle Theorems - Activity B

### 4: Parallels

#### 4.5: Slope

Slope - Activity B

#### 4.6: Equations of Lines

Point-Slope Form of a Line - Activity A

Slope-Intercept Form of a Line - Activity C

Standard Form of a Line

### 5: Triangles and Congruence

#### 5.1: Classifying Triangles

Classifying Triangles

#### 5.2: Angles of a Triangle

Triangle Angle Sum - Activity A

#### 5.3: Geometry in Motion

Reflections

Rock Art (Transformations)

Rotations, Reflections and Translations

Translations

#### 5.5: SSS and SAS

Proving Triangles Congruent

#### 5.6: ASA and AAS

Proving Triangles Congruent

### 6: More About Triangles

#### 6.1: Medians

Concurrent Lines, Medians, and Altitudes

#### 6.2: Altitues and Perpendicular Bisectors

Concurrent Lines, Medians, and Altitudes

#### 6.3: Angle Bisectors of Triangles

Concurrent Lines, Medians, and Altitudes

#### 6.4: Isosceles Triangles

Isosceles and Equilateral Triangles

#### 6.6: The Pythagorean Theorem

Geoboard: The Pythagorean Theorem

#### 6.7: Distance on the Coordinate Plane

Distance Formula - Activity A

### 7: Triangle Inequalities

#### 7.3: Inequalities Within a Triangle

Triangle Inequalities

### 8: Quadrilaterals

#### 8.1: Quadrilaterals

Classifying Quadrilaterals - Activity A

#### 8.3: Tests for Parallelograms

Parallelogram Conditions

#### 8.4: Rectangles, Rhombi, and Squares

Special Quadrilaterals

### 9: Proportions and Similarity

#### 9.1: Using Ratios and Proportions

Beam to Moon (Ratios and Proportions)

Estimating Population Size

#### 9.2: Similar Polygons

Similar Polygons

#### 9.6: Proportional Parts and Triangles

Similarity in Right Triangles

#### 9.9: Perimeters and Similarity

Perimeters and Areas of Similar Figures

### 10: Polygons and Area

#### 10.4: Areas of Triangles and Trapezoids

Area of Parallelograms - Activity A

#### 10.6: Symmetry

Holiday Snowflake Designer

Quilting Bee (Symmetry)

### 11: Circles

#### 11.2: Arcs and Central Angles

Inscribing Angles

#### 11.3: Arcs and Chords

Bisectors in Triangles

#### 11.5: Circumference of a Circle

Circle: Circumference and Area

#### 11.6: Area of a Circle

Circle: Circumference and Area

### 12: Surface Area and Volume

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

Surface and Lateral Area of Prisms and Cylinders

#### 12.3: Volumes of Prisms and Cylinders

Prisms and Cylinders - Activity A

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

Surface and Lateral Area of Pyramids and Cones

#### 12.5: Volumes of Pyramids and Cones

Pyramids and Cones - Activity A

### 13: Right triangles and Trigonometry

#### 13.1: Simplifying Square Roots

Simplifying Radicals - Activity B

#### 13.4: Tangent Ratio

Tangent Ratio

#### 13.5: Sine and Cosine Ratios

Sine and Cosine Ratios - Activity A

### 14: Circle Relationships

#### 14.1: Inscribed Angles

Inscribing Angles

#### 14.6: Equations of Circles

Circle: Circumference and Area

### 16: More Coordinate Graphing and Transformations

#### 16.1: Solving Systems of Equations by Graphing

Solving Linear Systems by Graphing

#### 16.2: Solving Systems of Equations by Using Algebra

Systems of Linear Equations - Activity A

#### 16.3: Translations

Translations

#### 16.4: Reflections

Reflections

#### 16.5: Rotations

Rotations, Reflections and Translations

#### 16.6: Dilations

Dilations