1. Drill Find the next number in the sequence: -3, -1, 1, 3, __, __
1, 4, 2, 5, 3, __, __
c) Name three things in the real world that represent a line, a point and an angle.

2. Chapter 1
Tools of Geometry

3. 1.2 Points, Lines, and Planes

4. Notes(Vocab)
Points: have no size, often represented with dots, and named with a capital letter. C A B

5. Lines: have no thickness, and extend infinitely in two directions
Lines: have no thickness, and extend infinitely in two directions. Named with two points, or a cursive letter. Y X

6. Collinear: points that are lying in the same line.
Non-Collinear: Not lying in the same line.

7. Planes: Extend infinitely in all directions
Planes: Extend infinitely in all directions. It is flat and has no thickness. There are two ways to name a plane.
Coplanar: Points and lines that are in the same Plane.

8. Postulates: an accepted statement or fact.
The intersection of two lines is a ______.
The intersection of two planes is a ______.
Through any two points lies exactly one ______.
Through any three non collinear points there is exactly one ______.

9. 1.3 Segments, Rays, Parallel Lines and Planes

10. Drill Two planes intersect to make a ___.
Two lines intersect to make a ___.
How many different ways can you name this line?
A B C D

11. Segments: Are parts of lines, they have two endpoints, and are named by using the two endpoints.

12. Rays: is a “half-line”. It has one endpoint and extends infinitely in one direction.
Opposite Rays: share the same endpoint and go in opposite directions.

13. Parallel Lines: are lines that are in the same plane and do not intersect.

14. Parallel Planes: Two planes that never intersect.
Skew Lines: Lines that do not intersect but are not parallel, because they are in different planes.

15. Classwork/Homework
Page #’s 15 – 16
#’s 1 – 26
# 39
Page #’s 20 – 21
#’s 1 – 30