1. Geometry
Advise from former students: “Take notes and actually use them to help on other things”
Today:
1.1 Instruction
Vocab Intro
Problem Practice

2. Assignment Yesterday: Advise from former students:
“Take notes and actually use them to help on other things”
Yesterday:
Policy Signature
Student Info Sheet
Website Word
Get Supplies

3. 1.1 Points, Lines, and Planes

4. 1.1 Points, Lines, and Planes

5. 1.1 Points, Lines, and Planes
Objective:
Understand and use the basic defined and undefined terms of Geometry.
Sketch relationships in Geometry.
Vocabulary:
Undefined term, point, line, plane, collinear, coplanar,

6. 1.1 Points, Lines, and Planes
Make a chart in your notes that takes up about a whole page. It should have seven rows. The boxes should be big enough to write a sentence or draw a picture in.

7. 1.1 Points, Lines, and Planes First row:
- a location
- made up of points
- flat surface
- extends forever
Real Life Ex:
Definition
- extends forever
Real Life Ex:
Real Life Ex:

8. 1.1 Points, Lines, and Planes Second Row:
- a location
- made up of points
- flat surface
- extends forever
Real Life Ex:
Definition
- extends forever
Real Life Ex:
Real Life Ex:
a line with arrows at each end
a slanted four sided figure
Drawn as
a dot

9. 1.1 Points, Lines, and Planes
Third Row:
Point
Line
Plane
a line with arrows at each end
a slanted four sided figure
Drawn as
a dot B M X •P A
Picture W l Y Z

10. 1.1 Points, Lines, and Planes
Fourth and Fifth Rows:
Point
Line
Plane B M X •P A
Picture W l Y Z
The letters of two points on the line with a line over them OR a lower case cursive
a capital letter
The letters of three points on the plane not all on the same line OR a capital cursive
Named by
Written as
line
plane WXY
point P
plane WYZ
line
line l
plane M

11. 1.1 Points, Lines, and Planes
Sixth and Seventh Rows:
Point
Line
Plane
has neither shape nor size
there is exactly one line through any two points
there is exactly one plane through any three points
Facts
Known as an undefined term.
Points of the same line: collinear
Points on the same plane: coplanar
Vocab

12. Example 1a A. Use the figure to name a line containing the point X.
A. line X
B. line c
C. line Z D.
Example 1a

13. B. Use the figure to name a plane containing point Z.
EXAMPLE 1
B. Use the figure to name a plane containing point Z.
A. plane XY
B. plane c
C. plane XQY
D. plane P

14. Real World EXAMPLE 2
B. Name the geometric shape modeled by the ceiling of your classroom.
A. point
B. line segment
C. plane
D. none of the above
Example 2b

15. EXAMPLE 3
A. Choose the best diagram for the given relationship. Plane D contains line a, line m, and line t, with all three lines intersecting at point Z. Also, point F is on plane D and is not collinear with any of the three given lines.
A. B C. D.
Example 3a

16. Example 4a A. How many planes appear in this figure? A. one B. two
C. three
D. four

17. Example 4b B. Name three points that are collinear. A. B, O, and X
B. X, O, and N
C. R, O, and B
D. A, X, and Z
Example 4b

18. EXAMPLE 4
A. point X
B. point N
C. point R
D. point A
Example 4d

19. Naming Collinear and Coplanar Points:
Name three points that are collinear.
L, N, O or M, N, P
Name a point that are not coplanar. P
Name a line not contained by plane LMO.
Line MN, NP or MP ● P L N O M

20. Assignment Due tomorrow:
Education's purpose is to replace an empty mind with an open one.
Malcolm Forbes
Due tomorrow:
1.1 p 11 #53-54, and p 13 #1-4
Signature and Class Info
Get supplies – check on Monday

21. Supply Check Supply Check MONDAY! NO EXCUSES!
Notebook and folder or binder and paper
protractor
ruler
compass 7