This video will demonstrate how to show when lines must be parallel. Length: 8:14

Lesson 2-5: Proving Lines Parallel

The purpose of this podcast is to give the student verbal and visual instruction that will complement the PowerPoint presentations found on Henrico County's Geometry Online. All content of this podcast was created by Mr. Anderson, teacher of mathematics, glenallenhs High School, Henrico County, Virginia.

This video will describe the nature of tessellations and tilings. In addition, you will view some of M.C. Escher's most famous work and learn how to create a regular and semi-regular tiling using Geometer's Sketchpad software. Lastly, you will see how to apply this knowledge in dealing with a standardized test question. Length: 12:00

Lesson 10-4: Tessellations

This video will demonstrate how to create a one, two, and three point perspective drawing of a prism (box). In addition, it will show how to determine the vanishing point of famous works of art. Length: 12:48

Lesson 10-3: Perspective Drawing

This video will show the 2 segment formulas for circles and their proofs. Length: 8:10

Lesson 8-6: Segment Formulas

This video will show the 4 angle formulas for circles and their proofs. Explanation of finding the angle formed by the hands of a clock is included as well. Length: 11:15

Lesson 8-5: Angle Formulas

This video will demonstrate three theorems relevant to arcs and chords as well as and outline of the proofs for these theorems. Length: 9:05

Lesson 2-5: Proving Lines Parallel

Download our free app to listen on your phone