Video Tutors

Homework Video Tutor

• Chapter 1: Tools of Geometry
  • Lesson 1: Patterns and Inductive Reasoning
  • Lesson 2: Drawings, Nets, and Other Models
  • Lesson 3: Points, Lines, and Planes
  • Lesson 4: Segments, Rays, Parallel Lines, and Planes
  • Lesson 5: Measuring Segments
  • Lesson 6: Measuring Angles
  • Lesson 7: Basic Constructions
  • Lesson 8: The Coordinate Plane
  • Lesson 9: Perimeter, Circumference, and Area

• Chapter 2: Reasoning and Proof
  • Lesson 1: Conditional Statements
  • Lesson 2: Biconditional and Definitions
  • Lesson 3: Deductive Reasoning
  • Lesson 4: Reasoning in Algebra
  • Lesson 5: Proving Angles Congruent

• Chapter 3: Parallel and Perpendicular Lines
  • Lesson 1: Properties of Parallel Lines
  • Lesson 2: Proving Lines Parallel
  • Lesson 3: Parallel and Perpendicular Lines
  • Lesson 4: Parallel Lines and the Triangle Angle-Sum Theorem
  • Lesson 5: The Polygon Angle-Sum Theorems
  • Lesson 6: Lines in the Coordinate Plane
  • Lesson 7: Slopes of Parallel and Perpendicular Lines
  • Lesson 8: Constructing Parallel and Perpendicular Lines

• Chapter 4: Congruent Triangles
  • Lesson 1: Congruent Figures
  • Lesson 2: Triangle Congruence by SSS and SAS
  • Lesson 3: Triangle Congruence by ASA and AAS
  • Lesson 4: Using Congruent Triangles: CPCTC
  • Lesson 5: Isosceles and Equilateral Triangles
  • Lesson 6: Congruence in Right Triangles
  • Lesson 7: Using Corresponding Parts of Congruent Triangles

• Chapter 5: Relationships Within Triangles
  • Lesson 1: Midsegments of Triangles
  • Lesson 2: Bisectors in Triangles
  • Lesson 3: Concurrent Lines, Medians, and Altitudes
  • Lesson 4: Inverses, Contrapositives, and Indirect Reasoning
  • Lesson 5: Inequalities in Triangles

• Chapter 6: Quadrilaterals
  • Lesson 1: Classifying Quadrilaterals
  • Lesson 2: Properties of Parallelograms
  • Lesson 3: Proving That a Quadrilateral is a Parallelogram
  • Lesson 4: Special Parallelograms
  • Lesson 5: Trapezoids and Kites
  • Lesson 6: Placing Figures in the Coordinate Plane
  • Lesson 7: Proofs Using Coordinate Geometry

• Chapter 7: Similarity
  • Lesson 1: Ratios and Proportions
  • Lesson 2: Similar Polygons
  • Lesson 3: Proving Triangles Similar
  • Lesson 4: Similarity in Right Triangles
  • Lesson 5: Proportions in Triangles

• Chapter 8: Right Triangles and Trigonometry
  • Lesson 1: The Pythagorean Theorem and Its Converse
  • Lesson 2: Special Right Triangles
  • Lesson 3: The Tangent Ratio
  • Lesson 4: Sine and Cosine Ratios
  • Lesson 5: Angles of Elevation and Depression
  • Lesson 6: Vectors

• Chapter 9: Transformations
  • Lesson 1: Translations
  • Lesson 2: Reflections
  • Lesson 3: Rotations
  • Lesson 4: Symmetry
  • Lesson 5: Dilations
  • Lesson 6: Compositions of Reflections
  • Lesson 7: Tessellations

• Chapter 10: Area
  • Lesson 1: Areas of Parallelograms and Triangles
  • Lesson 2: Areas of Trapezoids, Rhombuses, and Kites
  • Lesson 3: Areas of Regular Polygons
  • Lesson 4: Perimeters and Areas of Similar Figures
  • Lesson 5: Trigonometry and Area
  • Lesson 6: Circles and Arcs
  • Lesson 7: Areas of Circles and Sectors
  • Lesson 8: Geometric Probability

• Chapter 11: Surface Area and Volume
  • Lesson 1: Models for Space Figures and Cross Sections
  • Lesson 2: Surface Areas of Prisms and Cylinders
  • Lesson 3: Surface Areas of Pyramids and Cones
  • Lesson 4: Volumes of Prisms and Cylinders
  • Lesson 5: Volumes of Pyramids and Cones
  • Lesson 6: Surface Areas and Volumes of Spheres
  • Lesson 7: Areas and Volumes of Similar Solids

• Chapter 12: Circles
  • Lesson 1: Tangent Lines
  • Lesson 2: Chords and Arcs
  • Lesson 3: Inscribed Angles
  • Lesson 4: Angle Measures and Segment Lengths
  • Lesson 5: Circles in the Coordinate Plane
  • Lesson 6: Locus: A Set of Points

Video Tutor Help

• Video Tutor Help
  • 1-4 Segments and Rays
  • 1-6 Classifying Angles
  • 1-6 Vertical Angles
  • 1-9 Area
  • 3-1 Properties of Parallel Lines
  • 3-4 Classifying Triangles
  • 3-5 Polygon Angle-Sum Theorem
  • 4-2 SAS
  • 10-1 Area of a Parallelogram
  • 10-2 Area of a Trapezoid
  • 11-4 Volume of a Cylinder

Real-World Video

• Real-World Video
  • 2-3 Electrical Engineer
  • 3-8 Architecture and Geometry
  • 4-7 Origami
  • 6-3 Marine Navigation
  • 9-7 Tiles of Tessellations
  • 10-1 Hurricanes
  • 10-4 Community Garden
  • 11-1 Euler
  • 12-2 Ferris Wheel

• Geometry Formulas and Facts

• Dave's Math Tables

• Working with Area&Volume

• Working with Circles