Investigating Geometry: Fundamentals

Henrico County Public Schools

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May 2006

Lesson 1-1: Point, Line, Plane

Interactive Applet
Video Lecture

Objective:

The student will be able to make and describe fundamental sketches. The student will also be able to understand basic concepts such as intersect, horizontal, vertical, collinear and coplanar.

 Applet Directions 1 Close 
  1. Are points A, F, G and D coplanar?

  2. Using the segment tool , construct the four "edges" of plane AFGD.

  3. Move the "drag" point to view how a plane can intersect a prism (box) diagonally.
 Applet Directions 2 Close 
  1. Does the plane that you dragged contain plane AFGD?

  2. Drag points A, D, C or H to change your perspective of the prism and plane.

  3. Are points D, B, F and H coplanar?

  Hands-On Activities Close 
  1. Parallel Planes C.a.R.
  2. Perpendicular Planes C.a.R.
  Other Web Sites Close 
  1. History of Geometry - This is an excellent outline with links to biographies of hundreds of mathematicians
  2. Coordinate Plane - general information
  3. Glencoe: On Line Quiz
 Puzzles & Problems tangram Close 

Intersection Map
Same Distance?
Every Quadrant?