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