Objective: Draw representations of and use real life-examples to describe points, lines, and planes.

Accepted and used to define other terms

No sizeNamed by a capital letter

Notation: Point A

Points (infinite amount)Extend in 2 directions and never endHave no thickness

Notation: or Or line l

AB BA

Infinite pointsSuggested by floor, chalkboard, etc.Never endsNo thicknessNo edges

Notation: Plane M Or Plane DEFG

M

D

E

F

G

Space – set of all points Collinear – points all on the same line Noncollinear – points not all on same line Coplanar – points all on the same plane Noncoplanar- points not on same plane Podcast on Planes

Set of all points belonging to both figures

2 Lines

or

Point Line

Are collinear points always coplanar?

Are coplanar points always collinear?

Give 2 characteristics of points, lines and planes.

Pages 7-8; 1-25odd

Written Ex.!!