Table of Contents

1. Unit 1 - Basics of Geometry
   1. Points, Lines, Planes Definitions
   2. Collinear Points Example and Definitions
   3. Segment, collinear, coplanar
   4. Midpoint Formula
   5. Distance in the Coordinate Plane
   6. GeoGebra Protractor Tool
   7. Protractor Practice (Random)
   8. Angle Bisector
   9. Vertical Angles and Linear Pairs
   10. Complementary Meaning?
   11. Supplementary Angles (Quick Exploration)
2. Unit 2 - Lines
   1. Graph the Line
   2. Find Slope from Two Points
   3. Slope Intercept Form of a Line
   4. Point Slope Form
   5. Parallel and Perpendicular Lines
   6. Transversal Intersects Parallel Lines
   7. Alternate Interior Angles: Quick Investigation
   8. Parallel Lines Cut by a Transversal
   9. Alternate Exterior Angles: Quick Investigation
   10. Parallel lines with transversal and angles
   11. Writing Equations of Parallel and Perpendicular Lines
3. Unit 3 - Triangle Congruence
   1. Classifying triangles by sides and angles
   2. Triangle Exterior Angle
   3. Triangle Angle Sum Theorem
   4. Proof Without Words
   5. Congruent Triangles SSS
   6. ASA Theorem?
   7. SAS: Dynamic Proof!
   8. Exploring ASA and AAS
   9. A Special Triangle & Its Properties (I)
   10. Equilateral Triangle
   11. Triangle Inequality: Discovery Lesson
4. Unit 4 Quadrilaterals
   1. The sum of angles in a quadrilateral
   2. Sum of the Interior Angles of a Polygon
   3. Polygons: Exterior Angles - REVAMPED
   4. Parallelograms (I)
   5. Properties of a Parallelogram
   6. Properties of a Rectangle
   7. Rectangle Template with Investigation Questions
   8. Properties of a Rhombus
   9. Properties of a Square
   10. Trapezoids and Kites
   11. Kite Action!
   12. Trapezoid: Area (I)
5. Unit 5 Similarity
   1. Ratios and Proportions Exploration 1.4
   2. Similar Polygons Investigation
   3. Similar Polygons
   4. Similar Triangles
   5. Similar triangles with missing lengths
   6. Parallel Lines Proportionality Theorem
   7. Triangle proportionality theorem
   8. Proportionality property 2